kID. Prefer v2 Own customer endpoints for new integrations.curl --location 'https://api.studiointern.de//v1/own/customer?kID=' \
--header 'Authorization: <api-key>'{
"customer": {
"ID": 0,
"debnr": "string",
"salutation": "string",
"degree": "string",
"address": "string",
"address2": "string",
"zip": "string",
"location": "string",
"phone": "string",
"mobile": "string",
"firstName": "string",
"lastName": "string",
"email": "string",
"active": null
}
}