SAP FI Substitutions Configuration Guide

This document outlines the configuration of Substitutions within the SAP FI (Financial Accounting) module. Substitutions allow for the modification or derivation of field values in financial documents, providing a way to enhance the system without extensive custom coding. The document details three types of substitution methods: constant value, exit (using custom ABAP code), and field-to-field assignment, and illustrates how they work during FI document posting.

Key steps covered in the document are:

• Configure Constant Value Substitution (T-Code: GGB1)
• Assign Substitution to Company Code (T-Code: OBBH)
• Set Prerequisite Condition for Substitution (T-Code: GGB1)
• Configure Custom Exit Substitution (T-Code: GGB1, SE11, SE38, GCX2)
• Create Custom Table for Exit Logic (T-Code: SE11)
• Copy and Modify Standard Program for Exit Subroutine (T-Code: SE38,GCX2).
• Define Custom Subroutine for the Exit (T-Code: SE38)
• Configure Field-to-Field Assignment Substitution (T-Code: GGB1)
• Post FI document (T-Code: F-02)

The document provides step-by-step instructions, showcasing the usage of various SAP transaction codes and ABAP programming to customize FI document processing with substitutions. It also emphasizes the use of transaction codes like F-02 to demonstrate the end results of substitutions.

Download – SAP FI Substitutions Configuration Guide