13- create Subscriber - Without MijnKPN Zakelijk account

Number of APIs: 4

1. 1- Get all hierarchy entity GET {{baseUrl}}/hierarchy/children

2. 2- Get operations availability for chosen item GET {{baseUrl}}/hierarchy/children/:id/operations

3. 3- Create subscriber (without user) POST {{baseUrl}}/hierarchy/subscribers

4. 4- Get service requests details GET {{baseUrl}}/track-and-trace/service-requests/:id