How To Fix 28138 - Char. variable &2 (facet &1) does not appear in the execution section

28138 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 138

• Message text: Char. variable &2 (facet &1) does not appear in the execution section

What causes this issue?

Variables in the UNDO section of a rule must be used in the execution
section, too (THEN DO).
This is not the case with this characteristic facet reference.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

28138 - Details

• The SAP error message 28138 indicates that a character variable (specifically, a variable defined in a facet) is not being used in the execution section of a program or a report. This typically occurs in the context of ABAP programming, particularly when working with the ABAP Workbench or when developing reports and forms.
  
  Cause:
  The error is caused by the following scenarios:
  
  Unused Variable: The character variable defined in the facet is not referenced or used in the execution section of the program. This can happen if the variable is declared but not utilized in any operations, calculations, or output.
  Scope Issues: The variable might be declared in a scope that is not accessible in the execution section.
  Typographical Errors: There may be a typo in the variable name when trying to use it, leading to the system not recognizing it.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Variable Usage: Ensure that the