How To Fix FL854 - Exception classes were sorted by their inheritance relationships

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 854

• Message text: Exception classes were sorted by their inheritance relationships

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FL854 - Exception classes were sorted by their inheritance relationships ?

  The SAP error message FL854 indicates that there is an issue related to the sorting of exception classes in the context of the SAP system. This error typically arises when there is a problem with the way exception classes are defined or used in the ABAP code, particularly in relation to their inheritance relationships.
  Cause:
  
  Inheritance Issues: The error often occurs when exception classes are not properly defined or when there are inconsistencies in their inheritance hierarchy. For example, if a subclass is not correctly inheriting from its parent class, it can lead to sorting issues.
  Incorrect Exception Handling: If the code is trying to handle exceptions in a way that does not align with the defined exception classes, it can trigger this error.
  Changes in Class Definitions: If there have been recent changes to the exception classes or their relationships, it may lead to inconsistencies that cause this error.
  
  Solution:
  
  Check Exception Class Definitions: Review the definitions of the exception classes involved. Ensure that they are correctly defined and that their inheritance relationships are properly established.
  Review Inheritance Hierarchy: Make sure that the inheritance hierarchy is logical and that subclasses are correctly inheriting from their parent classes.
  Code Review: Examine the ABAP code where the exceptions are being raised or handled. Ensure that the exception handling logic is correctly implemented and that it aligns with the defined exception classes.
  Recompile Classes: Sometimes, recompiling the classes can resolve issues related to inconsistencies. You can do this by using transaction SE80 or SE24.
  Check for Updates: If you are using a specific version of SAP, check for any patches or updates that may address known issues related to exception handling.
  
  Related Information:
  
  ABAP Exception Handling: Understanding how exception handling works in ABAP can help in diagnosing and fixing issues related to exception classes. Familiarize yourself with the TRY...ENDTRY and CATCH blocks.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions for the FL854 error.
  Documentation: Review the official SAP documentation regarding exception classes and their usage in ABAP programming.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an experienced ABAP developer for further assistance.