How To Fix TG155 - Current release could not be determined; action must be canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 155

• Message text: Current release could not be determined; action must be canceled

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 TG155 - Current release could not be determined; action must be canceled ?

  The SAP error message TG155, which states "Current release could not be determined; action must be canceled," typically occurs in the context of SAP system upgrades or when there are issues with the system's configuration or environment. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  System Upgrade Issues: The error may arise during or after an upgrade process if the system is unable to determine the current release version.
  Configuration Problems: Incorrect or incomplete configuration settings in the SAP system can lead to this error.
  Missing or Corrupted Files: Essential files or components required for the system to identify its release version may be missing or corrupted.
  Database Issues: Problems with the underlying database can also prevent the system from determining its release.
  Transport Issues: If there are issues with transport requests that affect the system's configuration, this error may occur.
  
  Solutions:
  
  Check System Configuration: Verify the configuration settings in the SAP system. Ensure that all necessary parameters are correctly set.
  Review Upgrade Logs: If the error occurred during an upgrade, check the upgrade logs for any warnings or errors that could provide more context.
  Restore Missing Files: If you suspect that files are missing or corrupted, restore them from a backup or reinstall the necessary components.
  Database Consistency Check: Perform a consistency check on the database to ensure that it is functioning correctly and that there are no issues affecting the SAP system.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on your system's configuration and logs.
  
  Related Information:
  
  SAP Support Portal: Utilize the SAP Support Portal to search for specific notes or documentation related to error TG155.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in diagnosing or resolving the issue, such as ST22 (dump analysis) or SLG1 (application log).
  
  By following these steps, you should be able to identify the cause of the TG155 error and implement a suitable solution.