How To Fix SY140 - & stack is empty

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 140

• Message text: & stack is empty

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY140 - & stack is empty ?

  The SAP error message SY140, which indicates "Stack is empty," typically occurs in the context of ABAP programming or during the execution of certain transactions. This error suggests that the system encountered an unexpected situation where it expected to find data in the stack but found none. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Program Logic Errors: The error may arise from a logical flaw in the ABAP code, such as incorrect handling of function calls or missing return values.
  Uninitialized Variables: If a variable that is expected to hold data is not initialized properly, it can lead to an empty stack situation.
  Recursion Issues: If a program or function is recursively calling itself without a proper exit condition, it may lead to stack overflow or empty stack errors.
  Incorrect Exception Handling: If exceptions are not handled correctly, it may lead to unexpected behavior and empty stack conditions.
  System or Memory Issues: In some cases, system-level issues or memory constraints can lead to this error.
  
  Solutions:
  
  Debugging the Code: Use the ABAP debugger to step through the code and identify where the stack becomes empty. Look for function calls and ensure that they are returning the expected values.
  Check Variable Initialization: Ensure that all variables are properly initialized before they are used. This includes checking for null or empty values.
  Review Recursive Calls: If recursion is being used, ensure that there is a proper base case to terminate the recursion.
  Exception Handling: Review the exception handling in the code to ensure that all potential exceptions are caught and handled appropriately.
  Code Review: Conduct a thorough review of the code to identify any logical errors or potential pitfalls that could lead to this error.
  System Resources: Check the system resources and memory usage. If the system is running low on memory, consider optimizing the code or increasing the available resources.
  
  Related Information:
  
  Transaction Codes: If the error occurs during a specific transaction, note the transaction code and check for known issues or patches related to that transaction.
  SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Community Forums: Check SAP community forums or discussion boards for similar issues reported by other users and their solutions.
  Version Compatibility: Ensure that the ABAP code is compatible with the version of SAP you are using, as certain functions or methods may behave differently across versions.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.