Error 1150001, Invalid field value related to Payment, can happen in the following situations.
The error can happen if you are a developer set up to use Shipper Rate Plans but the request header in the API call does not include the plan. Make sure the header includes the Shipper Rate Plan when necessary.
The error can also happen if your developer account is not entitled to a Shipper Rate Plan but the account has the “Use shipper rate” option set to “true”. Check to see if your developer account is entitled to use a Shipper Rate Plan. If necessary, contact Client Support at ClientSupportTechServices@pb.com or +1(844) 470-6626 to see if your account is set up properly.