PersonSendNotification

CRM5 EndpointsCRM / PersonSendNotification

Returns a list of CrmPersonSendNotification

GET/api/crm/person_send_notification

Query parameters

`id`integer
`person`string
`membershipEntryNotificationSent`string	When the membership entry notification (Eintritt) was last sent
`membershipExitNotificationSent`string	When the membership exit notification (Austritt) was last sent
`birthdayGreetingSent`string	When the birthday greeting was last sent
`created`string
`updated`string
`searchString`string	text to search for in the list
`orderFieldName`string	name of the order field
`orderFieldSort`string	sorting modeAllowed: `DESCASC`
`page`integer	page of the list
`pageSize`integer	number of entries for each page
`withMaxPageNumber`string	returns the number of pages available as a header if this is set

Responses

200Returns a list of CrmPersonSendNotificationarray<CrmPersonSendNotification>

Show fields (6)

idinteger
Primary key of the notification. Internal ID.
membership_entry_notification_sentstring (date-time)
When the membership entry notification (Eintritt) was last sent
membership_exit_notification_sentstring (date-time)
When the membership exit notification (Austritt) was last sent
birthday_greeting_sentstring (date-time)
When the birthday greeting was last sent
createdstring (date-time)
Point in time the entity was created.
updatedstring (date-time)
Point in time the entity was last updated.

Request

curl --request GET \
  --url https://your-instance.iw-erp.de/api/crm/person_send_notification \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'GET', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/crm/person_send_notification', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/crm/person_send_notification"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://your-instance.iw-erp.de/api/crm/person_send_notification', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Get,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/crm/person_send_notification"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/crm/person_send_notification")
  .get()
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://your-instance.iw-erp.de/api/crm/person_send_notification"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.get(
  Uri.parse('https://your-instance.iw-erp.de/api/crm/person_send_notification'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Response 200 application/json

[
  {
    "id": 42,
    "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
    "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
    "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
    "created": "2026-10-15T09:30:00+02:00",
    "updated": "2026-10-15T09:30:00+02:00"
  }
]

Get a single CrmPersonSendNotification by ID

GET/api/crm/person_send_notification/{identifier}

Path parameters

identifierrequiredstring

Responses

200Returns a single CrmPersonSendNotificationCrmPersonSendNotification2

Show fields (7)

idinteger
Primary key of the notification. Internal ID.
personCRMPerson10
Person the notification is sent to.
Show fields (81)
- idinteger
  Primary key of the person. Internal ID.
- first_namestring
  First name of the person.
- last_namestring
  Last name of the person.
- numberinteger
  Member or customer number of the person.
- manual_numberinteger
  Number set manually instead of the automatic number.
- number_stringstring
  Member or customer number as text, including prefix.
- genderstring
  Gender of the person.
- titlestring
  Academic or other title of the person.
- positionstring
  Position or role of the person.
- languagestring
  Preferred language of the person.
- special_salutationstring
  Special salutation text for letters.
- form_of_salutationstring
  Form of salutation, for example formal or informal.
- birthdaystring (date-time)
  Birthday of the person.
- known_allergiesstring
  Known allergies of the person.
- confirmed_no_allergiesboolean
  Guardian confirmed that there are no known allergies.
- allow_photosboolean
  Photos of the person may be taken and published.
- allow_leaving_aloneboolean
  The person may leave the event alone.
- authorized_pickupstring
  Persons who are allowed to pick up the person.
- needs_supportboolean
  The person needs support, for example for inclusion.
- support_descriptionstring
  Description of the support the person needs.
- financial_supportboolean
  The person receives financial support.
- financial_support_numberstring
  Number of the financial support.
- municipal_supportboolean
  The person receives municipal support.
- municipal_support_numberstring
  Number of the municipal support.
- grade_levelinteger
  School grade level of the person.
- school_classstring
  School class of the person.
- start_timestring (date-time)
  Start of the membership or activity.
- start_time_reasonstring
  Reason for the start.
- end_timestring (date-time)
  End of the membership or activity.
- end_time_reasonstring
  Reason for the end.
- confirmed_gtc_timestring (date-time)
  Time the general terms and conditions were confirmed.
- chatbot_opt_inboolean
  Einwilligung in die Nutzung des KI-Assistenten. Denormalisierter aktueller Stand - das pruefbare Protokoll steht in ChatbotConsent.
- chatbot_opt_in_atstring (date-time)
  Time the person opted in to the chatbot.
- chatbot_opt_in_text_versionstring
  Version des Einwilligungstextes, dem zugestimmt wurde. Weicht sie von der aktuellen Version ab, ist das Opt-in abgelaufen.
- app_usage_statistics_opt_outboolean
  Widerspruch gegen die anonyme Nutzungsstatistik der Mitglieder-App. Die App liest ihn aus den StaticData und schickt dann nichts mehr; die gezaehlten Aufrufe selbst haben keinen Bezug zur Person.
- crm_person_contact_dataarray<CRMPersonContactData>
  Contact data of the person, for example phone and e-mail.
- archivedboolean
  Whether the person is archived.
- subscribed_newsletterboolean
  Whether the person subscribed to the newsletter.
- subscribed_magazineboolean
  Whether the person subscribed to the magazine.
- printed_member_cardboolean
  Whether a member card has been printed for the person.
- has_login_userboolean
  Whether the person has a login user.
- profile_picture_urlstring
  URL of the profile picture of the person.
- log_book_staffboolean
  Log book flag: staff.
- log_book_staff1boolean
  Log book flag: staff, level 1.
- log_book_staff2boolean
  Log book flag: staff, level 2.
- log_book_memberboolean
  Log book flag: member.
- log_book_trainerboolean
  Log book flag: trainer.
- log_book_trainer1boolean
  Log book flag: trainer, level 1.
- log_book_trainer2boolean
  Log book flag: trainer, level 2.
- log_book_head_of_departmentboolean
  Log book flag: head of department.
- log_book_supervisory_boardboolean
  Log book flag: supervisory board.
- log_book_board_of_directorsboolean
  Log book flag: board of directors.
- log_book_honorary_memberboolean
  Log book flag: honorary member.
- log_book_club_card_oneboolean
  Log book flag: club card.
- log_book_health_recoveredboolean
  Log book flag: recovered from illness.
- log_book_health_vaccinatedboolean
  Log book flag: vaccinated.
- log_book_health_vaccinated_additionstring
  Details of the vaccination.
- log_book_good_conductboolean
  Log book flag: certificate of good conduct.
- log_book_first_aidboolean
  Log book flag: first aid training.
- log_book_measles_vaccinationboolean
  Log book flag: measles vaccination.
- sync_lanistaboolean
  Whether the person is synchronized with Lanista.
- categoryCRMPersonCategory
  Person category.
- nicknamestring
  Nickname of the person.
- preferred_color_hexstring
  Preferred color of the person as hex value.
- avatar_tokenstring
  Token of the avatar image.
- search_stringstring
  Text that the entity can be searched by.
- addressstring
  Address as text.
- address_streetstring
  Street of the address.
- address_house_numberstring
  House number of the address.
- address_street_levelstring
  Street and house number of the address.
- address_costring
  Care-of line of the address.
- address_citystring
  City of the address.
- address_zipstring
  Postal code of the address.
- address_admin_level1string
  First administrative level of the address, e.g. the federal state.
- address_countrystring
  Country code of the address.
- address_full_countrystring
  Full name of the country of the address.
- address_geo_latstring
  Latitude of the address.
- address_geo_lngstring
  Longitude of the address.
- address_external_provider_idstring
  field to store the external provider id of the address. e.g. Google Maps PlaceID like google:ChIJVcKw5r90sEcRhdjNq6NItqE
- createdstring (date-time)
  Point in time the entity was created.
- … 2 more fields
membership_entry_notification_sentstring (date-time)
When the membership entry notification (Eintritt) was last sent
membership_exit_notification_sentstring (date-time)
When the membership exit notification (Austritt) was last sent
birthday_greeting_sentstring (date-time)
When the birthday greeting was last sent
createdstring (date-time)
Point in time the entity was created.
updatedstring (date-time)
Point in time the entity was last updated.

Request

curl --request GET \
  --url https://your-instance.iw-erp.de/api/crm/person_send_notification/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'GET', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/crm/person_send_notification/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://your-instance.iw-erp.de/api/crm/person_send_notification/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Get,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/crm/person_send_notification/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/crm/person_send_notification/42")
  .get()
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.get(
  Uri.parse('https://your-instance.iw-erp.de/api/crm/person_send_notification/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Response 200 application/json

{
  "id": 42,
  "person": {
    "id": 42,
    "first_name": "Lena",
    "last_name": "Hartmann",
    "title": "Beispiel",
    "language": "de",
    "support_description": "Text",
    "profile_picture_url": "https://vynst.de",
    "address_street": "Jakobistr. 39",
    "address_city": "Hannover",
    "address_zip": "30163"
  },
  "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
  "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
  "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
  "created": "2026-10-15T09:30:00+02:00",
  "updated": "2026-10-15T09:30:00+02:00"
}

Update a CrmPersonSendNotification - clear a send marker by setting it to null to allow sending again

PUT/api/crm/person_send_notification/{identifier}

Path parameters

identifierrequiredstring

Request body application/json

dataCrmPersonSendNotification2
Show fields (7)
- idinteger
  Primary key of the notification. Internal ID.
- personCRMPerson10
  Person the notification is sent to.
- membership_entry_notification_sentstring (date-time)
  When the membership entry notification (Eintritt) was last sent
- membership_exit_notification_sentstring (date-time)
  When the membership exit notification (Austritt) was last sent
- birthday_greeting_sentstring (date-time)
  When the birthday greeting was last sent
- createdstring (date-time)
  Point in time the entity was created.
- updatedstring (date-time)
  Point in time the entity was last updated.

Responses

200Update a CrmPersonSendNotificationCrmPersonSendNotification2

Show fields (7)

idinteger
Primary key of the notification. Internal ID.
personCRMPerson10
Person the notification is sent to.
Show fields (81)
- idinteger
  Primary key of the person. Internal ID.
- first_namestring
  First name of the person.
- last_namestring
  Last name of the person.
- numberinteger
  Member or customer number of the person.
- manual_numberinteger
  Number set manually instead of the automatic number.
- number_stringstring
  Member or customer number as text, including prefix.
- genderstring
  Gender of the person.
- titlestring
  Academic or other title of the person.
- positionstring
  Position or role of the person.
- languagestring
  Preferred language of the person.
- special_salutationstring
  Special salutation text for letters.
- form_of_salutationstring
  Form of salutation, for example formal or informal.
- birthdaystring (date-time)
  Birthday of the person.
- known_allergiesstring
  Known allergies of the person.
- confirmed_no_allergiesboolean
  Guardian confirmed that there are no known allergies.
- allow_photosboolean
  Photos of the person may be taken and published.
- allow_leaving_aloneboolean
  The person may leave the event alone.
- authorized_pickupstring
  Persons who are allowed to pick up the person.
- needs_supportboolean
  The person needs support, for example for inclusion.
- support_descriptionstring
  Description of the support the person needs.
- financial_supportboolean
  The person receives financial support.
- financial_support_numberstring
  Number of the financial support.
- municipal_supportboolean
  The person receives municipal support.
- municipal_support_numberstring
  Number of the municipal support.
- grade_levelinteger
  School grade level of the person.
- school_classstring
  School class of the person.
- start_timestring (date-time)
  Start of the membership or activity.
- start_time_reasonstring
  Reason for the start.
- end_timestring (date-time)
  End of the membership or activity.
- end_time_reasonstring
  Reason for the end.
- confirmed_gtc_timestring (date-time)
  Time the general terms and conditions were confirmed.
- chatbot_opt_inboolean
  Einwilligung in die Nutzung des KI-Assistenten. Denormalisierter aktueller Stand - das pruefbare Protokoll steht in ChatbotConsent.
- chatbot_opt_in_atstring (date-time)
  Time the person opted in to the chatbot.
- chatbot_opt_in_text_versionstring
  Version des Einwilligungstextes, dem zugestimmt wurde. Weicht sie von der aktuellen Version ab, ist das Opt-in abgelaufen.
- app_usage_statistics_opt_outboolean
  Widerspruch gegen die anonyme Nutzungsstatistik der Mitglieder-App. Die App liest ihn aus den StaticData und schickt dann nichts mehr; die gezaehlten Aufrufe selbst haben keinen Bezug zur Person.
- crm_person_contact_dataarray<CRMPersonContactData>
  Contact data of the person, for example phone and e-mail.
- archivedboolean
  Whether the person is archived.
- subscribed_newsletterboolean
  Whether the person subscribed to the newsletter.
- subscribed_magazineboolean
  Whether the person subscribed to the magazine.
- printed_member_cardboolean
  Whether a member card has been printed for the person.
- has_login_userboolean
  Whether the person has a login user.
- profile_picture_urlstring
  URL of the profile picture of the person.
- log_book_staffboolean
  Log book flag: staff.
- log_book_staff1boolean
  Log book flag: staff, level 1.
- log_book_staff2boolean
  Log book flag: staff, level 2.
- log_book_memberboolean
  Log book flag: member.
- log_book_trainerboolean
  Log book flag: trainer.
- log_book_trainer1boolean
  Log book flag: trainer, level 1.
- log_book_trainer2boolean
  Log book flag: trainer, level 2.
- log_book_head_of_departmentboolean
  Log book flag: head of department.
- log_book_supervisory_boardboolean
  Log book flag: supervisory board.
- log_book_board_of_directorsboolean
  Log book flag: board of directors.
- log_book_honorary_memberboolean
  Log book flag: honorary member.
- log_book_club_card_oneboolean
  Log book flag: club card.
- log_book_health_recoveredboolean
  Log book flag: recovered from illness.
- log_book_health_vaccinatedboolean
  Log book flag: vaccinated.
- log_book_health_vaccinated_additionstring
  Details of the vaccination.
- log_book_good_conductboolean
  Log book flag: certificate of good conduct.
- log_book_first_aidboolean
  Log book flag: first aid training.
- log_book_measles_vaccinationboolean
  Log book flag: measles vaccination.
- sync_lanistaboolean
  Whether the person is synchronized with Lanista.
- categoryCRMPersonCategory
  Person category.
- nicknamestring
  Nickname of the person.
- preferred_color_hexstring
  Preferred color of the person as hex value.
- avatar_tokenstring
  Token of the avatar image.
- search_stringstring
  Text that the entity can be searched by.
- addressstring
  Address as text.
- address_streetstring
  Street of the address.
- address_house_numberstring
  House number of the address.
- address_street_levelstring
  Street and house number of the address.
- address_costring
  Care-of line of the address.
- address_citystring
  City of the address.
- address_zipstring
  Postal code of the address.
- address_admin_level1string
  First administrative level of the address, e.g. the federal state.
- address_countrystring
  Country code of the address.
- address_full_countrystring
  Full name of the country of the address.
- address_geo_latstring
  Latitude of the address.
- address_geo_lngstring
  Longitude of the address.
- address_external_provider_idstring
  field to store the external provider id of the address. e.g. Google Maps PlaceID like google:ChIJVcKw5r90sEcRhdjNq6NItqE
- createdstring (date-time)
  Point in time the entity was created.
- … 2 more fields
membership_entry_notification_sentstring (date-time)
When the membership entry notification (Eintritt) was last sent
membership_exit_notification_sentstring (date-time)
When the membership exit notification (Austritt) was last sent
birthday_greeting_sentstring (date-time)
When the birthday greeting was last sent
createdstring (date-time)
Point in time the entity was created.
updatedstring (date-time)
Point in time the entity was last updated.

Request

curl --request PUT \
  --url https://your-instance.iw-erp.de/api/crm/person_send_notification/42 \
  --header 'content-type: application/json' \
  --header 'x-iw-jwt-token: <TOKEN>' \
  --data '
{
  "data": {
    "id": 42,
    "person": {
      "id": 42,
      "first_name": "Lena",
      "last_name": "Hartmann",
      "title": "Beispiel",
      "language": "de",
      "support_description": "Text"
    },
    "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
    "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
    "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
    "created": "2026-10-15T09:30:00+02:00"
  }
}
'

const options = {
  method: 'PUT',
  headers: {'x-iw-jwt-token': '<TOKEN>', 'content-type': 'application/json'},
  body: JSON.stringify({
    data: {
      id: 42,
      person: {
        id: 42,
        first_name: 'Lena',
        last_name: 'Hartmann',
        title: 'Beispiel',
        language: 'de',
        support_description: 'Text'
      },
      membership_entry_notification_sent: '2026-10-15T09:30:00+02:00',
      membership_exit_notification_sent: '2026-10-15T09:30:00+02:00',
      birthday_greeting_sent: '2026-10-15T09:30:00+02:00',
      created: '2026-10-15T09:30:00+02:00'
    }
  })
};

fetch('https://your-instance.iw-erp.de/api/crm/person_send_notification/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

payload = { "data": {
    "id": 42,
    "person": {
      "id": 42,
      "first_name": "Lena",
      "last_name": "Hartmann",
      "title": "Beispiel",
      "language": "de",
      "support_description": "Text"
    },
    "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
    "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
    "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
    "created": "2026-10-15T09:30:00+02:00"
  } }
headers = {
  "x-iw-jwt-token": "<TOKEN>",
  "content-type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PUT', 'https://your-instance.iw-erp.de/api/crm/person_send_notification/42', [
  'body' => '{"data":{"id":42,"person":{"id":42,"first_name":"Lena","last_name":"Hartmann","title":"Beispiel","language":"de","support_description":"Text"},"membership_entry_notification_sent":"2026-10-15T09:30:00+02:00","membership_exit_notification_sent":"2026-10-15T09:30:00+02:00","birthday_greeting_sent":"2026-10-15T09:30:00+02:00","created":"2026-10-15T09:30:00+02:00"}}',
  'headers' => [
    'content-type' => 'application/json',
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Put,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/crm/person_send_notification/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
  Content = new StringContent("{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}")
  {
    Headers =
    {
      ContentType = new MediaTypeHeaderValue("application/json")
    }
  }
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}");
Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/crm/person_send_notification/42")
  .put(body)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .addHeader("content-type", "application/json")
  .build();

Response response = client.newCall(request).execute();

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

	payload := strings.NewReader("{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")
	req.Header.Add("content-type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'dart:convert';
import 'package:http/http.dart' as http;

final response = await http.put(
  Uri.parse('https://your-instance.iw-erp.de/api/crm/person_send_notification/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>', 'content-type': 'application/json'},
  body: jsonEncode({
    "data": {
      "id": 42,
      "person": {
        "id": 42,
        "first_name": "Lena",
        "last_name": "Hartmann",
        "title": "Beispiel",
        "language": "de",
        "support_description": "Text"
      },
      "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
      "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
      "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
      "created": "2026-10-15T09:30:00+02:00"
    }
  }),
);
print(response.body);

Response 200 application/json

{
  "id": 42,
  "person": {
    "id": 42,
    "first_name": "Lena",
    "last_name": "Hartmann",
    "title": "Beispiel",
    "language": "de",
    "support_description": "Text",
    "profile_picture_url": "https://vynst.de",
    "address_street": "Jakobistr. 39",
    "address_city": "Hannover",
    "address_zip": "30163"
  },
  "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
  "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
  "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
  "created": "2026-10-15T09:30:00+02:00",
  "updated": "2026-10-15T09:30:00+02:00"
}

Update a CrmPersonSendNotification - clear a send marker by setting it to null to allow sending again

PATCH/api/crm/person_send_notification/{identifier}

Path parameters

identifierrequiredstring

Request body application/json

dataCrmPersonSendNotification2
Show fields (7)
- idinteger
  Primary key of the notification. Internal ID.
- personCRMPerson10
  Person the notification is sent to.
- membership_entry_notification_sentstring (date-time)
  When the membership entry notification (Eintritt) was last sent
- membership_exit_notification_sentstring (date-time)
  When the membership exit notification (Austritt) was last sent
- birthday_greeting_sentstring (date-time)
  When the birthday greeting was last sent
- createdstring (date-time)
  Point in time the entity was created.
- updatedstring (date-time)
  Point in time the entity was last updated.

Responses

200Update a CrmPersonSendNotificationCrmPersonSendNotification2

Show fields (7)

idinteger
Primary key of the notification. Internal ID.
personCRMPerson10
Person the notification is sent to.
Show fields (81)
- idinteger
  Primary key of the person. Internal ID.
- first_namestring
  First name of the person.
- last_namestring
  Last name of the person.
- numberinteger
  Member or customer number of the person.
- manual_numberinteger
  Number set manually instead of the automatic number.
- number_stringstring
  Member or customer number as text, including prefix.
- genderstring
  Gender of the person.
- titlestring
  Academic or other title of the person.
- positionstring
  Position or role of the person.
- languagestring
  Preferred language of the person.
- special_salutationstring
  Special salutation text for letters.
- form_of_salutationstring
  Form of salutation, for example formal or informal.
- birthdaystring (date-time)
  Birthday of the person.
- known_allergiesstring
  Known allergies of the person.
- confirmed_no_allergiesboolean
  Guardian confirmed that there are no known allergies.
- allow_photosboolean
  Photos of the person may be taken and published.
- allow_leaving_aloneboolean
  The person may leave the event alone.
- authorized_pickupstring
  Persons who are allowed to pick up the person.
- needs_supportboolean
  The person needs support, for example for inclusion.
- support_descriptionstring
  Description of the support the person needs.
- financial_supportboolean
  The person receives financial support.
- financial_support_numberstring
  Number of the financial support.
- municipal_supportboolean
  The person receives municipal support.
- municipal_support_numberstring
  Number of the municipal support.
- grade_levelinteger
  School grade level of the person.
- school_classstring
  School class of the person.
- start_timestring (date-time)
  Start of the membership or activity.
- start_time_reasonstring
  Reason for the start.
- end_timestring (date-time)
  End of the membership or activity.
- end_time_reasonstring
  Reason for the end.
- confirmed_gtc_timestring (date-time)
  Time the general terms and conditions were confirmed.
- chatbot_opt_inboolean
  Einwilligung in die Nutzung des KI-Assistenten. Denormalisierter aktueller Stand - das pruefbare Protokoll steht in ChatbotConsent.
- chatbot_opt_in_atstring (date-time)
  Time the person opted in to the chatbot.
- chatbot_opt_in_text_versionstring
  Version des Einwilligungstextes, dem zugestimmt wurde. Weicht sie von der aktuellen Version ab, ist das Opt-in abgelaufen.
- app_usage_statistics_opt_outboolean
  Widerspruch gegen die anonyme Nutzungsstatistik der Mitglieder-App. Die App liest ihn aus den StaticData und schickt dann nichts mehr; die gezaehlten Aufrufe selbst haben keinen Bezug zur Person.
- crm_person_contact_dataarray<CRMPersonContactData>
  Contact data of the person, for example phone and e-mail.
- archivedboolean
  Whether the person is archived.
- subscribed_newsletterboolean
  Whether the person subscribed to the newsletter.
- subscribed_magazineboolean
  Whether the person subscribed to the magazine.
- printed_member_cardboolean
  Whether a member card has been printed for the person.
- has_login_userboolean
  Whether the person has a login user.
- profile_picture_urlstring
  URL of the profile picture of the person.
- log_book_staffboolean
  Log book flag: staff.
- log_book_staff1boolean
  Log book flag: staff, level 1.
- log_book_staff2boolean
  Log book flag: staff, level 2.
- log_book_memberboolean
  Log book flag: member.
- log_book_trainerboolean
  Log book flag: trainer.
- log_book_trainer1boolean
  Log book flag: trainer, level 1.
- log_book_trainer2boolean
  Log book flag: trainer, level 2.
- log_book_head_of_departmentboolean
  Log book flag: head of department.
- log_book_supervisory_boardboolean
  Log book flag: supervisory board.
- log_book_board_of_directorsboolean
  Log book flag: board of directors.
- log_book_honorary_memberboolean
  Log book flag: honorary member.
- log_book_club_card_oneboolean
  Log book flag: club card.
- log_book_health_recoveredboolean
  Log book flag: recovered from illness.
- log_book_health_vaccinatedboolean
  Log book flag: vaccinated.
- log_book_health_vaccinated_additionstring
  Details of the vaccination.
- log_book_good_conductboolean
  Log book flag: certificate of good conduct.
- log_book_first_aidboolean
  Log book flag: first aid training.
- log_book_measles_vaccinationboolean
  Log book flag: measles vaccination.
- sync_lanistaboolean
  Whether the person is synchronized with Lanista.
- categoryCRMPersonCategory
  Person category.
- nicknamestring
  Nickname of the person.
- preferred_color_hexstring
  Preferred color of the person as hex value.
- avatar_tokenstring
  Token of the avatar image.
- search_stringstring
  Text that the entity can be searched by.
- addressstring
  Address as text.
- address_streetstring
  Street of the address.
- address_house_numberstring
  House number of the address.
- address_street_levelstring
  Street and house number of the address.
- address_costring
  Care-of line of the address.
- address_citystring
  City of the address.
- address_zipstring
  Postal code of the address.
- address_admin_level1string
  First administrative level of the address, e.g. the federal state.
- address_countrystring
  Country code of the address.
- address_full_countrystring
  Full name of the country of the address.
- address_geo_latstring
  Latitude of the address.
- address_geo_lngstring
  Longitude of the address.
- address_external_provider_idstring
  field to store the external provider id of the address. e.g. Google Maps PlaceID like google:ChIJVcKw5r90sEcRhdjNq6NItqE
- createdstring (date-time)
  Point in time the entity was created.
- … 2 more fields
membership_entry_notification_sentstring (date-time)
When the membership entry notification (Eintritt) was last sent
membership_exit_notification_sentstring (date-time)
When the membership exit notification (Austritt) was last sent
birthday_greeting_sentstring (date-time)
When the birthday greeting was last sent
createdstring (date-time)
Point in time the entity was created.
updatedstring (date-time)
Point in time the entity was last updated.

Request

curl --request PATCH \
  --url https://your-instance.iw-erp.de/api/crm/person_send_notification/42 \
  --header 'content-type: application/json' \
  --header 'x-iw-jwt-token: <TOKEN>' \
  --data '
{
  "data": {
    "id": 42,
    "person": {
      "id": 42,
      "first_name": "Lena",
      "last_name": "Hartmann",
      "title": "Beispiel",
      "language": "de",
      "support_description": "Text"
    },
    "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
    "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
    "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
    "created": "2026-10-15T09:30:00+02:00"
  }
}
'

const options = {
  method: 'PATCH',
  headers: {'x-iw-jwt-token': '<TOKEN>', 'content-type': 'application/json'},
  body: JSON.stringify({
    data: {
      id: 42,
      person: {
        id: 42,
        first_name: 'Lena',
        last_name: 'Hartmann',
        title: 'Beispiel',
        language: 'de',
        support_description: 'Text'
      },
      membership_entry_notification_sent: '2026-10-15T09:30:00+02:00',
      membership_exit_notification_sent: '2026-10-15T09:30:00+02:00',
      birthday_greeting_sent: '2026-10-15T09:30:00+02:00',
      created: '2026-10-15T09:30:00+02:00'
    }
  })
};

fetch('https://your-instance.iw-erp.de/api/crm/person_send_notification/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

payload = { "data": {
    "id": 42,
    "person": {
      "id": 42,
      "first_name": "Lena",
      "last_name": "Hartmann",
      "title": "Beispiel",
      "language": "de",
      "support_description": "Text"
    },
    "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
    "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
    "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
    "created": "2026-10-15T09:30:00+02:00"
  } }
headers = {
  "x-iw-jwt-token": "<TOKEN>",
  "content-type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'https://your-instance.iw-erp.de/api/crm/person_send_notification/42', [
  'body' => '{"data":{"id":42,"person":{"id":42,"first_name":"Lena","last_name":"Hartmann","title":"Beispiel","language":"de","support_description":"Text"},"membership_entry_notification_sent":"2026-10-15T09:30:00+02:00","membership_exit_notification_sent":"2026-10-15T09:30:00+02:00","birthday_greeting_sent":"2026-10-15T09:30:00+02:00","created":"2026-10-15T09:30:00+02:00"}}',
  'headers' => [
    'content-type' => 'application/json',
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Patch,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/crm/person_send_notification/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
  Content = new StringContent("{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}")
  {
    Headers =
    {
      ContentType = new MediaTypeHeaderValue("application/json")
    }
  }
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}");
Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/crm/person_send_notification/42")
  .patch(body)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .addHeader("content-type", "application/json")
  .build();

Response response = client.newCall(request).execute();

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

	payload := strings.NewReader("{\"data\":{\"id\":42,\"person\":{\"id\":42,\"first_name\":\"Lena\",\"last_name\":\"Hartmann\",\"title\":\"Beispiel\",\"language\":\"de\",\"support_description\":\"Text\"},\"membership_entry_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"membership_exit_notification_sent\":\"2026-10-15T09:30:00+02:00\",\"birthday_greeting_sent\":\"2026-10-15T09:30:00+02:00\",\"created\":\"2026-10-15T09:30:00+02:00\"}}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")
	req.Header.Add("content-type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'dart:convert';
import 'package:http/http.dart' as http;

final response = await http.patch(
  Uri.parse('https://your-instance.iw-erp.de/api/crm/person_send_notification/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>', 'content-type': 'application/json'},
  body: jsonEncode({
    "data": {
      "id": 42,
      "person": {
        "id": 42,
        "first_name": "Lena",
        "last_name": "Hartmann",
        "title": "Beispiel",
        "language": "de",
        "support_description": "Text"
      },
      "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
      "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
      "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
      "created": "2026-10-15T09:30:00+02:00"
    }
  }),
);
print(response.body);

Response 200 application/json

{
  "id": 42,
  "person": {
    "id": 42,
    "first_name": "Lena",
    "last_name": "Hartmann",
    "title": "Beispiel",
    "language": "de",
    "support_description": "Text",
    "profile_picture_url": "https://vynst.de",
    "address_street": "Jakobistr. 39",
    "address_city": "Hannover",
    "address_zip": "30163"
  },
  "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
  "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
  "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
  "created": "2026-10-15T09:30:00+02:00",
  "updated": "2026-10-15T09:30:00+02:00"
}

Delete a single CrmPersonSendNotification with the given id - clears all send markers of the person

DELETE/api/crm/person_send_notification/{identifier}

Path parameters

identifierrequiredstring

Responses

200Delete a single CrmPersonSendNotification with the given idCrmPersonSendNotification2

Show fields (7)

idinteger
Primary key of the notification. Internal ID.
personCRMPerson10
Person the notification is sent to.
Show fields (81)
- idinteger
  Primary key of the person. Internal ID.
- first_namestring
  First name of the person.
- last_namestring
  Last name of the person.
- numberinteger
  Member or customer number of the person.
- manual_numberinteger
  Number set manually instead of the automatic number.
- number_stringstring
  Member or customer number as text, including prefix.
- genderstring
  Gender of the person.
- titlestring
  Academic or other title of the person.
- positionstring
  Position or role of the person.
- languagestring
  Preferred language of the person.
- special_salutationstring
  Special salutation text for letters.
- form_of_salutationstring
  Form of salutation, for example formal or informal.
- birthdaystring (date-time)
  Birthday of the person.
- known_allergiesstring
  Known allergies of the person.
- confirmed_no_allergiesboolean
  Guardian confirmed that there are no known allergies.
- allow_photosboolean
  Photos of the person may be taken and published.
- allow_leaving_aloneboolean
  The person may leave the event alone.
- authorized_pickupstring
  Persons who are allowed to pick up the person.
- needs_supportboolean
  The person needs support, for example for inclusion.
- support_descriptionstring
  Description of the support the person needs.
- financial_supportboolean
  The person receives financial support.
- financial_support_numberstring
  Number of the financial support.
- municipal_supportboolean
  The person receives municipal support.
- municipal_support_numberstring
  Number of the municipal support.
- grade_levelinteger
  School grade level of the person.
- school_classstring
  School class of the person.
- start_timestring (date-time)
  Start of the membership or activity.
- start_time_reasonstring
  Reason for the start.
- end_timestring (date-time)
  End of the membership or activity.
- end_time_reasonstring
  Reason for the end.
- confirmed_gtc_timestring (date-time)
  Time the general terms and conditions were confirmed.
- chatbot_opt_inboolean
  Einwilligung in die Nutzung des KI-Assistenten. Denormalisierter aktueller Stand - das pruefbare Protokoll steht in ChatbotConsent.
- chatbot_opt_in_atstring (date-time)
  Time the person opted in to the chatbot.
- chatbot_opt_in_text_versionstring
  Version des Einwilligungstextes, dem zugestimmt wurde. Weicht sie von der aktuellen Version ab, ist das Opt-in abgelaufen.
- app_usage_statistics_opt_outboolean
  Widerspruch gegen die anonyme Nutzungsstatistik der Mitglieder-App. Die App liest ihn aus den StaticData und schickt dann nichts mehr; die gezaehlten Aufrufe selbst haben keinen Bezug zur Person.
- crm_person_contact_dataarray<CRMPersonContactData>
  Contact data of the person, for example phone and e-mail.
- archivedboolean
  Whether the person is archived.
- subscribed_newsletterboolean
  Whether the person subscribed to the newsletter.
- subscribed_magazineboolean
  Whether the person subscribed to the magazine.
- printed_member_cardboolean
  Whether a member card has been printed for the person.
- has_login_userboolean
  Whether the person has a login user.
- profile_picture_urlstring
  URL of the profile picture of the person.
- log_book_staffboolean
  Log book flag: staff.
- log_book_staff1boolean
  Log book flag: staff, level 1.
- log_book_staff2boolean
  Log book flag: staff, level 2.
- log_book_memberboolean
  Log book flag: member.
- log_book_trainerboolean
  Log book flag: trainer.
- log_book_trainer1boolean
  Log book flag: trainer, level 1.
- log_book_trainer2boolean
  Log book flag: trainer, level 2.
- log_book_head_of_departmentboolean
  Log book flag: head of department.
- log_book_supervisory_boardboolean
  Log book flag: supervisory board.
- log_book_board_of_directorsboolean
  Log book flag: board of directors.
- log_book_honorary_memberboolean
  Log book flag: honorary member.
- log_book_club_card_oneboolean
  Log book flag: club card.
- log_book_health_recoveredboolean
  Log book flag: recovered from illness.
- log_book_health_vaccinatedboolean
  Log book flag: vaccinated.
- log_book_health_vaccinated_additionstring
  Details of the vaccination.
- log_book_good_conductboolean
  Log book flag: certificate of good conduct.
- log_book_first_aidboolean
  Log book flag: first aid training.
- log_book_measles_vaccinationboolean
  Log book flag: measles vaccination.
- sync_lanistaboolean
  Whether the person is synchronized with Lanista.
- categoryCRMPersonCategory
  Person category.
- nicknamestring
  Nickname of the person.
- preferred_color_hexstring
  Preferred color of the person as hex value.
- avatar_tokenstring
  Token of the avatar image.
- search_stringstring
  Text that the entity can be searched by.
- addressstring
  Address as text.
- address_streetstring
  Street of the address.
- address_house_numberstring
  House number of the address.
- address_street_levelstring
  Street and house number of the address.
- address_costring
  Care-of line of the address.
- address_citystring
  City of the address.
- address_zipstring
  Postal code of the address.
- address_admin_level1string
  First administrative level of the address, e.g. the federal state.
- address_countrystring
  Country code of the address.
- address_full_countrystring
  Full name of the country of the address.
- address_geo_latstring
  Latitude of the address.
- address_geo_lngstring
  Longitude of the address.
- address_external_provider_idstring
  field to store the external provider id of the address. e.g. Google Maps PlaceID like google:ChIJVcKw5r90sEcRhdjNq6NItqE
- createdstring (date-time)
  Point in time the entity was created.
- … 2 more fields
membership_entry_notification_sentstring (date-time)
When the membership entry notification (Eintritt) was last sent
membership_exit_notification_sentstring (date-time)
When the membership exit notification (Austritt) was last sent
birthday_greeting_sentstring (date-time)
When the birthday greeting was last sent
createdstring (date-time)
Point in time the entity was created.
updatedstring (date-time)
Point in time the entity was last updated.

Request

curl --request DELETE \
  --url https://your-instance.iw-erp.de/api/crm/person_send_notification/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'DELETE', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/crm/person_send_notification/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.delete(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('DELETE', 'https://your-instance.iw-erp.de/api/crm/person_send_notification/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Delete,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/crm/person_send_notification/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/crm/person_send_notification/42")
  .delete(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://your-instance.iw-erp.de/api/crm/person_send_notification/42"

	req, _ := http.NewRequest("DELETE", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.delete(
  Uri.parse('https://your-instance.iw-erp.de/api/crm/person_send_notification/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Response 200 application/json

{
  "id": 42,
  "person": {
    "id": 42,
    "first_name": "Lena",
    "last_name": "Hartmann",
    "title": "Beispiel",
    "language": "de",
    "support_description": "Text",
    "profile_picture_url": "https://vynst.de",
    "address_street": "Jakobistr. 39",
    "address_city": "Hannover",
    "address_zip": "30163"
  },
  "membership_entry_notification_sent": "2026-10-15T09:30:00+02:00",
  "membership_exit_notification_sent": "2026-10-15T09:30:00+02:00",
  "birthday_greeting_sent": "2026-10-15T09:30:00+02:00",
  "created": "2026-10-15T09:30:00+02:00",
  "updated": "2026-10-15T09:30:00+02:00"
}