question

I was able to fetch all the business policies in my sandbox account but recently it is responding with a bad request.

Here's the response body for the endpoint getReturnPolicies with the marketplace id as EBAY_US

{
  "errors": [
    {
      "errorId": 20403,
      "domain": "API_ACCOUNT",
      "category": "REQUEST",
      "message": "Invalid policy ID. The seller profile ID is not valid",
      "parameters": [
        {
          "name": "fieldName",
          "value": "policy ID"
        },
        {
          "name": "additionalInfo",
          "value": "The seller profile ID is not valid"
        }
      ]
    }
  ]
}