Payment Ref. or BSEG-KIDNO is not found in BAPI_ACC_DOCUMENT_POST

Hi Experts,

I need to update the payment ref. field for an invoice using BAPI BAPI_ACC_DOCUMENT_POST but I don't see any field in the BAPI objects for this field.

Can any one please suggest how can I achieve this using BAPI_ACC_DOCUMENT_POST.

Alternatively, it will be a great help if any alternate solution is available to update the Payment Ref. information for an invoice.

Best Regards

Roy