How To Fix SY143 - & stack full

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 143

• Message text: & stack full

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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Smart SAP Assistant

• What is the cause and solution for SAP error message SY143 - & stack full ?

  The SAP error message SY143, often accompanied by "stack full," typically indicates that the program has exceeded the maximum allowed stack size during execution. This can happen due to various reasons, such as deep recursion, excessive use of nested function calls, or large data structures being processed.
  Causes:
  
  Deep Recursion: If a function calls itself too many times without a base case to stop, it can lead to a stack overflow.
  Excessive Nested Calls: Similar to recursion, if there are too many nested function calls, it can fill up the stack.
  Large Data Structures: Passing large data structures or objects as parameters in function calls can consume a lot of stack space.
  Infinite Loops: If there is a logical error causing an infinite loop, it can also lead to this error.
  Configuration Issues: Sometimes, the stack size may be configured too low for the operations being performed.
  
  Solutions:
  
  Review Code for Recursion: Check for recursive function calls and ensure that there is a proper base case to terminate the recursion.
  Optimize Function Calls: Reduce the number of nested function calls or refactor the code to use iterative approaches instead of recursive ones.
  Use Global Variables: If large data structures are being passed around, consider using global variables or static variables to reduce stack usage.
  Increase Stack Size: If the application genuinely requires more stack space, you can increase the stack size in the SAP system configuration. This is usually done in the instance profile parameters (e.g., abap/stack_size).
  Debugging: Use debugging tools to trace the execution of the program and identify where the stack is being filled up. Look for loops or excessive function calls.
  Code Review: Conduct a thorough review of the code to identify any logical errors or inefficiencies that could lead to stack overflow.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the SY143 error. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE37 (Function Builder) to analyze the code and identify problematic areas.
  Performance Analysis: Use tools like ST05 (SQL Trace) or SAT (ABAP Trace) to analyze performance and identify bottlenecks in the code.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support or a technical consultant who can provide more tailored assistance based on the specific context of the error.