Moving Project Task to other parent not possible

Moving Project Task to other parent not possible

We are trying to move an existing Zoho Projects task to a different parent task via API.

Example:

  • Task ID: 289214000001385113
  • Current parent: 289214000001281044
  • New parent: 289214000001281045

We tested updating the task with:

taskParam.put("parent_task_id", "289214000001281045");

The API request succeeds without errors, but the parent task is not changed.
The response still returns the old parent_task_id.

We also tested a /move endpoint, but received:

{
  "error": {
    "code": 6891,
    "message": "Given URL is wrong"
  }
}


Also V3 didnt work
  1. // =====================================================
  2. // 2. PATCH Params bauen
  3. // =====================================================

  5. params = Map();
  6. params.put("parental_info", {"parent_task_id":newParentId});

  8. info "PATCH Params:";
  9. info params;

  11. // =====================================================
  12. // 3. PATCH Request senden
  13. // =====================================================

  15. patchResp = invokeurl
  16. [
  17. 	url : taskUrl
  18. 	type : PATCH
  19. 	parameters : params.toString()
  20. 	connection : "zproject_connection"
  21. ];

  23. info "PATCH Response:";
  24. info patchResp;

Question:
Is it possible to move an existing task to another parent task via Zoho Projects API?
If yes, which endpoint or parameter should be used?