curl --request POST \
  --url https://{cluster}.voucherify.io/v2/loyalties/programs/{programId}/tier-structures/batch \
  --header 'Content-Type: application/json' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>' \
  --data '
{
  "assign": [
    {
      "id": "<string>"
    }
  ],
  "unassign": [
    {
      "id": "<string>"
    }
  ],
  "options": {
    "strict": true
  }
}
'

{
  "assigned": [
    {
      "tier_structure_id": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "object": "program_tier_structure"
    }
  ],
  "unassigned": [
    {
      "tier_structure_id": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "object": "program_tier_structure"
    }
  ]
}

{
  "code": 123,
  "key": "<string>",
  "message": "<string>",
  "details": "<string>",
  "request_id": "<string>",
  "resource_id": "<string>",
  "resource_type": "<string>"
}

{
  "code": 123,
  "key": "<string>",
  "message": "<string>",
  "details": "<string>",
  "request_id": "<string>",
  "resource_id": "<string>",
  "resource_type": "<string>"
}

{
  "code": 123,
  "key": "<string>",
  "message": "<string>",
  "details": "<string>",
  "request_id": "<string>",
  "resource_id": "<string>",
  "resource_type": "<string>"
}

{
  "code": 123,
  "key": "<string>",
  "message": "<string>",
  "details": "<string>",
  "request_id": "<string>",
  "resource_id": "<string>",
  "resource_type": "<string>"
}

{
  "code": 500,
  "key": "api_error",
  "message": "Something went wrong. Don't worry, your campaigns are still safe and the Voucherify Team has been notified. Check out our Help Center and forums for help, or head back to home."
}