How To Fix EU231 - There are too many external PERFORMs (hits table overflow)

SAP Error Message - Details

• Message type: E = Error

• Message class: EU - Development Environment

• Message number: 231

• Message text: There are too many external PERFORMs (hits table overflow)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message EU231 - There are too many external PERFORMs (hits table overflow) ?

  The SAP error message EU231, which states "There are too many external PERFORMs (hits table overflow)," typically occurs when the system has reached the limit of external PERFORM calls that can be handled. This is often related to the use of function modules or subroutines that are called from external programs or other function modules.
  Cause:
  
  Excessive External PERFORM Calls: The error is triggered when the number of external PERFORM calls exceeds the predefined limit in the SAP system. This can happen if there are too many nested calls or if a program is designed inefficiently, leading to a high number of calls.
  Hits Table Overflow: The hits table, which tracks these calls, has a limited size. When this limit is exceeded, the system cannot process additional calls, resulting in the error.
  
  Solution:
  
  Optimize Code: Review the code to identify and eliminate unnecessary external PERFORM calls. Look for opportunities to consolidate calls or refactor the code to reduce the number of calls made.
  Increase Limits: If optimization is not feasible or if the application genuinely requires a high number of calls, consider increasing the limits for external PERFORM calls. This can be done by adjusting system parameters, but it should be approached with caution and typically requires consulting with your SAP Basis team.
  Use Function Modules: Instead of using PERFORM statements, consider using function modules, which are better suited for handling multiple calls and can help avoid hitting the limit.
  Check for Recursive Calls: Ensure that there are no unintended recursive calls in your code that could lead to an excessive number of PERFORM calls.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error. SAP frequently updates its documentation and may have specific guidance for your version.
  Performance Monitoring: Use transaction codes like ST05 (SQL Trace) or ST12 (Performance Analysis) to monitor performance and identify bottlenecks in your code.
  Debugging: Utilize the debugger to step through the code and identify where excessive calls are being made.
  
  If the problem persists after attempting these solutions, it may be beneficial to engage with SAP support or a consultant who specializes in performance tuning and optimization within SAP environments.