delegatedAdminRelationships API Error

Question

Hello,

We are getting below error message while create a new delegatedAdminRelationship object

POST : https://graph.microsoft.com/v1.0/tenantRelationships/delegatedAdminRelationships

{
    "displayName": "admin relationship",
    "duration": "P730D",
    "customer": {
        "tenantId": "*************",
        "displayName": "******"
    },
    "accessDetails": {
        "unifiedRoles": [
            {
                "roleDefinitionId": "******************************"
            }
        ]
    },
    "autoExtendDuration": "P180D"
}

{
    "error": {
        "code": "unexpectedError",
        "message": "An unexpected error occurred in the server.",
        "innerError": {
            "date": "2024-06-19T04:24:22",
            "request-id": "14f1ec59-2aea-4045-8735-0f15f09542a8",
            "client-request-id": "14f1ec59-2aea-4045-8735-0f15f09542a8"
        }
    }
}