Upload program for Incoming Invoice for one time Vendor (FB60)

Hi,

We have a requirement to create the invoice for a one time vendor for the GL accounts from the file without PO reference similar to FB60.

I checked following BAPI_INCOMINGINVOICE_CREATE, but for this BAPI Purchase order is a mandatory filed thus not able to use this. I have also checked BAPI_ACC_DOCUMENT_POST but this does not allow to post for one time vendor.

Any suggestions will be appreciated.

Thank you,

Rohit