User exit for posting document interface using T-code fb60

[Former Member]

I am creating the accounting document from the IDOC using the process code as INVF and Function module assign for this process code is IDOC_INPUT_INVOIC_FI.

Basically I have to assign alternative account number for Vendor posting through IDOC from custom table and post to this account for billing.

I want to know , if this possible through any user exit .

So could any help out with correct exit to be used in this fucntion module and would appreicate if provided with sample code.

And also the Enhancent No: is FEDI0001 for SMOD.

Please reply me as soon as possible and let me know if any one requires some addition information.

Regards,

Vivek Saxena

[Former Member]

Have you looked at FI substitutions?

Rob