Validation for T-code FB50
Hi, I need to validate the user input for T-Code FB50 at the line item.
I've implement the validation rule and created a user exit. However, the validation rule cannot validate the data line by line at the item table because the value BSEG and COBL that pass in are wierd.
How can I validate the input line by line? What should I pass into the user exit (the screen table name?)?