How To Fix ACM_SYNTAX025 - Unexpected comparison operator. &1 is not supported at this position

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM_SYNTAX - ACM: DCL Syntax Error Messages

• Message number: 025

• Message text: Unexpected comparison operator. &1 is not supported at this position

What causes this issue?

In the DCL source a comparison operator was used which is not supported
by DCL.

System Response

The syntax check of the DCL source shows an error and activation of the
DCL source is not possible.

How to fix this error?

Check the DCL documentation for supported comparison operators in DCL
sources.
The list of supported comparison operators depends also whether ASPECTS
are used or not (e.g. BETWEEN is not supported while using aspects). If
you make use of the special aspect PFCG_AUTH the only supported
comparison operator is '=' in the DCL document.

Procedure for System Administrators

Contact the developer of the affected DCL document and ask for
correction.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ACM_SYNTAX025 - Unexpected comparison operator. &1 is not supported at this position ?

  The SAP error message ACM_SYNTAX025 indicates that there is an unexpected comparison operator in your code or configuration, specifically that the operator &1 is not supported at the position where it is being used. This error typically arises in the context of ABAP programming or when working with certain configuration settings in SAP.
  Cause:
  
  Invalid Operator: The error is often caused by using an invalid or unsupported comparison operator in a conditional statement or expression.
  Syntax Error: There may be a syntax error in the code where the operator is placed incorrectly or used inappropriately.
  Incorrect Data Types: The comparison might involve incompatible data types, leading to the operator being deemed invalid.
  Custom Code: If you are using custom ABAP code or enhancements, the error could stem from a mistake in that code.
  
  Solution:
  
  Check the Code: Review the line of code or configuration where the error occurs. Look for the comparison operator and ensure it is valid for the context.
  Correct Syntax: Ensure that the syntax of the statement is correct. For example, if you are using an IF statement, ensure that the comparison is structured properly.
  
  Example of a correct comparison: IF variable1 = variable2.
  
  
  Use Supported Operators: Make sure you are using supported comparison operators. Common operators include =, <>, <, >, <=, >=.
  Data Type Compatibility: Ensure that the variables or fields being compared are of compatible data types. If necessary, convert data types to ensure compatibility.
  Debugging: If the error is not immediately apparent, use debugging tools to step through the code and identify where the error occurs.
  Consult Documentation: Refer to SAP documentation or help resources for the specific context in which the error occurs to understand the expected syntax and operators.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  ABAP Documentation: Review the ABAP programming guidelines for proper syntax and usage of comparison operators.
  Community Forums: Look for discussions in SAP community forums or platforms like SAP Community, Stack Overflow, or other developer forums where similar issues may have been addressed.
  
  By following these steps, you should be able to identify and resolve the cause of the ACM_SYNTAX025 error in your SAP environment.