How To Fix MC337 - Explain plan cannot be displayed at the moment

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 337

• Message text: Explain plan cannot be displayed at the moment

What causes this issue?

The explain plan cannot be displayed at the moment for the database
system in use.

System Response

The system continues.

How to fix this error?

No action possible.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC337 - Explain plan cannot be displayed at the moment ?

  The SAP error message MC337, which states "Explain plan cannot be displayed at the moment," typically occurs in the context of the SAP system when users attempt to view the execution plan for a query or a report. This error can arise due to various reasons, and understanding the cause and potential solutions can help resolve the issue.
  Causes of MC337 Error
  
  
  Database Connection Issues: The error may occur if there are problems with the connection to the database. This could be due to network issues, database server downtime, or configuration problems.
  
  
  Insufficient Authorizations: The user may not have the necessary authorizations to view the execution plan. This can happen if the user role does not include the required permissions.
  
  
  Database Configuration: Certain database settings or configurations may prevent the execution plan from being generated or displayed.
  
  
  System Performance Issues: If the system is under heavy load or experiencing performance issues, it may not be able to generate the execution plan in a timely manner.
  
  
  Temporary System Glitches: Sometimes, temporary issues within the SAP system or the database can lead to this error.
  
  
  Solutions to MC337 Error
  
  
  Check Database Connection: Ensure that the connection to the database is stable and functioning correctly. You can test the connection and check for any network issues.
  
  
  Review User Authorizations: Verify that the user has the necessary authorizations to view the execution plan. This may involve checking user roles and permissions in the SAP system.
  
  
  Database Configuration Review: Consult with your database administrator to ensure that the database is configured correctly to allow for execution plan generation.
  
  
  Monitor System Performance: Check the performance of the SAP system and the database. If the system is under heavy load, consider optimizing queries or scheduling resource-intensive tasks during off-peak hours.
  
  
  Retry the Operation: If the error is due to a temporary glitch, simply retrying the operation after a short period may resolve the issue.
  
  
  Check SAP Notes: Look for any relevant SAP Notes or updates that may address this specific error. SAP frequently releases patches and updates that can resolve known issues.
  
  
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. They can provide more detailed troubleshooting steps based on your specific system configuration.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ST22 (Dump Analysis) and SM21 (System Log) to check for any related errors or logs that may provide more context.
  Performance Tuning: Consider reviewing performance tuning guides for your specific database and SAP version to optimize query performance and execution plan generation.
  Documentation: Refer to SAP documentation for your specific version to understand any limitations or known issues related to execution plans.
  
  By following these steps, you should be able to diagnose and resolve the MC337 error in your SAP environment.