Unable to Create BPM Delegation rules for All Tasks Type.

Hi,

We are trying to create Approval delegation rules for all Tasks using REST API : hcmRestApi/resources/11.13.18.05/businessProcessApprovalDelegationRules

However we are getting the below error. Does the API support creating rules for All Tasks like the same way we create from the BPM UI ?

exception.name: Invalid workflow rule test attribute.
exception.description: Workflow rule test Rule Created through API uses an invalid task attribute: null.
exception.fix: Specify valid task attributes when defining workflow rules

Payload used :

{    "Action": "CREATE",    "PersonId": "1232123",    "FieldOperation": null,    "IsSelfApprovalEnabled": "true",    "DelegateTo": "123123",    "FieldValue": null,    "DelegateToDisplayName": "Test Name",    "Field": null,    "StartDate": "9/1/25 8:29 AM",    "EndDate": "9/9/25 8:29 AM",    "RuleName": "Rule Created through API"}