During your sync operation, you receive an error showing ” 1320000140 – Payment means specification missing [RCT3.VoucherNum][line: 0] ” in SAP Business One

Cause

Voucher number is mandatory field in SAP Business One, and you have not mapped the value of the voucher number field.

Resolution

• Do the Mapping of the voucher number field.
• Ensure that voucher number is coming from the source application

Also Check out – Which SAP Business One modules does APPSeCONNECT sync with?