SAP Hints and Tips on Configuration and ABAP Programming

SAP Functional, Basis Components, and ABAP Programming Books

Automatic Postings for residual or G/L postings

Determine the G/L accounts that are posted for each individual reason code.

OBXL - Define Accounts for Overpayments/Underpayments

Default Transaction ZDI.

Maintain the Posting keys (button) and Rules (button).

OBXI - Define Cash Discounts

Default Transaction SKT.

For company that give cash discount to customers.