How To Fix ST664 - Internal error

SAP Error Message - Details

• Message type: E = Error

• Message class: ST - Terminology Database

• Message number: 664

• Message text: Internal error

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 ST664 - Internal error ?

  The SAP error message ST664, which indicates an "Internal error," can be somewhat vague, as it does not provide specific details about the underlying issue. However, it typically relates to problems within the SAP system's monitoring or performance analysis tools, particularly in the context of transaction ST03N (Workload Analysis) or ST04 (Database Performance Analysis).
  Possible Causes:
  
  System Configuration Issues: Misconfigurations in the SAP system or database settings can lead to internal errors.
  Database Connectivity Problems: Issues with the connection between the SAP application server and the database can trigger this error.
  Corrupted Data: Corrupted or inconsistent data in the database or in the SAP application can cause internal errors.
  Memory Issues: Insufficient memory allocation or memory leaks in the SAP system can lead to unexpected behavior.
  Software Bugs: There may be bugs in the SAP kernel or specific components that lead to internal errors.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal. SAP frequently releases notes that address known issues and provide patches or workarounds.
  Review System Logs: Check the system logs (transaction SM21) and developer traces (transaction ST22) for more detailed error messages that can provide insights into the cause of the internal error.
  Database Checks: Ensure that the database is functioning correctly. You can run database consistency checks and look for any issues that need to be resolved.
  System Restart: In some cases, a simple restart of the SAP application server or the database can resolve transient issues.
  Update Software: Ensure that your SAP system is up to date with the latest patches and updates. This can help resolve known bugs that may be causing the internal error.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any logs or traces you have collected.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ST03N (Workload Analysis), ST04 (Database Performance Analysis), SM21 (System Log), and ST22 (Dump Analysis).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation related to performance monitoring and troubleshooting to gain a better understanding of how to diagnose and resolve internal errors.
  
  By following these steps, you should be able to identify the cause of the ST664 error and implement a suitable solution.