How To Fix ACI_COMPILER_GENERIC054 - Illegal macro definition '&1' within macro expansion

SAP Error Message - Details

• Message type: E = Error

• Message class: ACI_COMPILER_GENERIC - EXPERIMENTAL, DON'T USE (ACI: Generic Compiler Messages)

• Message number: 054

• Message text: Illegal macro definition '&1' within macro expansion

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ACI_COMPILER_GENERIC054 - Illegal macro definition '&1' within macro expansion ?

  The SAP error message ACI_COMPILER_GENERIC054 indicates that there is an illegal macro definition within a macro expansion in your ABAP code. This typically occurs when the macro is defined incorrectly or when there are issues with the parameters being passed to the macro.
  Cause:
  
  Incorrect Macro Definition: The macro may be defined with invalid syntax or parameters that do not conform to the expected format.
  Parameter Issues: The macro might be trying to use parameters that are not defined or are incorrectly referenced.
  Nesting Issues: If macros are nested, there may be conflicts or incorrect references between them.
  Special Characters: The macro name or its parameters may contain illegal characters or spaces that are not allowed.
  
  Solution:
  
  Review Macro Definition: Check the definition of the macro that is causing the error. Ensure that it follows the correct syntax and that all parameters are properly defined.
  Check Parameter Usage: Verify that all parameters used in the macro are correctly referenced and that they exist in the context where the macro is being called.
  Simplify Nested Macros: If you are using nested macros, try simplifying them or breaking them down into smaller parts to isolate the issue.
  Remove Special Characters: Ensure that the macro name and its parameters do not contain any illegal characters or spaces.
  Consult Documentation: Refer to the SAP documentation for macros to ensure that you are following the correct guidelines for macro definitions and usage.
  
  Related Information:
  
  Macro Syntax: Familiarize yourself with the correct syntax for defining and using macros in ABAP. This includes understanding how to declare parameters and how to call the macro.
  Debugging Tools: Use debugging tools available in the ABAP Workbench to step through the code and identify where the macro is being incorrectly defined or called.
  SAP Notes: Check for any relevant SAP Notes or updates that may address known issues with macro definitions in your version of SAP.
  
  If the issue persists after checking these aspects, consider reaching out to SAP support or consulting with a colleague who has experience with ABAP macros for further assistance.