How To Fix SY058 - Invalid include nesting in &

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 058

• Message text: Invalid include nesting in &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY058 - Invalid include nesting in & ?

  The SAP error message SY058: Invalid include nesting in & typically occurs when there is an issue with the way includes are nested in ABAP programs. This error indicates that the program is trying to include a source code file (an include) in a way that is not allowed by the ABAP runtime environment.
  Cause:
  
  Incorrect Include Nesting: The error usually arises when an include file is being included in another include file, which is already included in the main program or another include. This can lead to circular references or exceed the allowed nesting depth.
  Circular Includes: If two or more includes reference each other, it can create a loop that the ABAP compiler cannot resolve.
  Exceeding Nesting Limits: SAP has a limit on how many levels of includes can be nested. If this limit is exceeded, the error will occur.
  
  Solution:
  
  Check Include Structure: Review the structure of your includes. Ensure that includes are not unnecessarily nested and that there are no circular references.
  Refactor Code: If you find that includes are deeply nested, consider refactoring your code. You may want to consolidate some includes or break them down into smaller, more manageable pieces.
  Use Function Modules or Classes: Instead of using includes, consider using function modules or classes to encapsulate reusable code. This can help avoid nesting issues.
  Review Include Usage: Ensure that includes are only used where necessary and that they are not included multiple times in a way that causes conflicts.
  Check for Syntax Errors: Sometimes, syntax errors in the includes can lead to misleading error messages. Ensure that all includes are syntactically correct.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for guidelines on using includes and best practices for structuring your code.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  Debugging Tools: Use the ABAP debugger to step through the program and identify where the include nesting is occurring. This can help pinpoint the exact location of the issue.
  
  By following these steps, you should be able to resolve the SY058 error and improve the structure of your ABAP code.