Error M8-688 - Creation of several vendor line items is not possible for document type RN.

Hello All,

We are using the Net Invoice Posting with document type RN(Invoice- Net). We are generating different vendor line items in the accounting document based on the withholding tax codes involved in the invoice posting. When it comes to net invoice posting system is giving an error message M8-688 - Creation of vendor line items is not possible for document type RN. Is there is any way to create multiple vendor items with net invoice posting? Please suggest.

Thanks,

Chandu.