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.