How To Fix 0M801 - Internal error (Tree structure for includes used more than once)

SAP Error Message - Details

• Message type: E = Error

• Message class: 0M - Customer Enhancements

• Message number: 801

• Message text: Internal error (Tree structure for includes used more than once)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 0M801 - Internal error (Tree structure for includes used more than once) ?

  The SAP error message 0M801 ("Internal error (Tree structure for includes used more than once)") typically indicates an issue related to the internal structure of the program or report being executed. This error often arises when there is a problem with the way includes or subroutines are being utilized in the ABAP code.
  Cause:
  
  Multiple Inclusion of Includes: The error can occur if an include file is being included multiple times in a way that is not supported by the ABAP runtime environment.
  Circular Includes: If there are circular references in the includes, it can lead to this error.
  Corrupted Program: Sometimes, the program or report may be corrupted or improperly compiled, leading to internal inconsistencies.
  Version Issues: If there are discrepancies between the versions of the program or the includes, it may lead to this error.
  
  Solution:
  
  Check Include Statements: Review the ABAP code to ensure that includes are not being included multiple times unnecessarily. Use the #include directive judiciously.
  Avoid Circular References: Ensure that there are no circular references in the includes. Each include should be structured to avoid referencing itself or creating a loop.
  Recompile the Program: Sometimes recompiling the program can resolve internal inconsistencies. You can do this by:
  
  Going to the ABAP Editor (transaction SE38 or SE80).
  Opening the program and choosing "Activate" or "Check" to recompile it.
  
  
  Check for Syntax Errors: Ensure that there are no syntax errors in the program or includes that could lead to this error.
  Review Transport Requests: If the program was transported from another system, ensure that all related objects were transported correctly and are in sync.
  Debugging: If the issue persists, you may need to debug the program to identify the exact point of failure. Use transaction SE80 or SE38 to set breakpoints and analyze the flow of execution.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search for the error message or related keywords in the SAP Support Portal.
  ABAP Documentation: Review the ABAP documentation for best practices on using includes and modularizing code.
  Community Forums: Consider checking SAP Community forums or other developer forums for similar issues and solutions shared by other developers.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance, especially if it appears to be a deeper issue with the SAP system itself.