How To Fix SHTTP021 - Error in Control Framework. Restart transaction.

SAP Error Message - Details

• Message type: E = Error

• Message class: SHTTP - Messages for Development Class SHTTP

• Message number: 021

• Message text: Error in Control Framework. Restart transaction.

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 SHTTP021 - Error in Control Framework. Restart transaction. ?

  The SAP error message SHTTP021: Error in Control Framework. Restart transaction. typically indicates an issue with the SAP GUI or the underlying control framework that manages the user interface components. This error can occur due to various reasons, including network issues, session timeouts, or problems with the SAP GUI installation.
  Causes:
  
  Network Issues: Temporary network disruptions can lead to communication problems between the SAP GUI and the application server.
  Session Timeout: If a user session has been inactive for too long, it may time out, leading to this error.
  SAP GUI Issues: Corrupted or outdated SAP GUI installations can cause control framework errors.
  Browser Compatibility: If you are using SAP GUI for HTML, browser compatibility issues may arise.
  Server Issues: Problems on the application server side, such as resource constraints or configuration issues, can also trigger this error.
  
  Solutions:
  
  Restart the Transaction: As the error message suggests, try restarting the transaction. Close the current session and log in again.
  Check Network Connection: Ensure that your network connection is stable and that there are no interruptions.
  Clear Cache: If using SAP GUI for HTML, clear your browser cache and cookies. For SAP GUI for Windows, you can clear the local cache.
  Update SAP GUI: Ensure that you are using the latest version of SAP GUI. If not, consider updating it to the latest version.
  Check Session Timeout Settings: If you frequently encounter this error due to session timeouts, check with your SAP administrator to see if the timeout settings can be adjusted.
  Reboot the Client Machine: Sometimes, simply restarting your computer can resolve temporary issues with the SAP GUI.
  Check SAP Notes: Look for any relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  SAP Community: You can also check the SAP Community forums for discussions related to this error, as other users may have encountered and resolved similar issues.
  Logs and Traces: If you have access to system logs or traces, reviewing them may provide additional insights into the root cause of the error.
  
  By following these steps, you should be able to resolve the SHTTP021 error and continue using SAP without further interruptions.