How To Fix CNV_DMC_UI_FW_EXCEPT054 - Class &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_UI_FW_EXCEPT - Messages for exception classes

• Message number: 054

• Message text: Class &1 not found

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 CNV_DMC_UI_FW_EXCEPT054 - Class &1 not found ?

  The SAP error message CNV_DMC_UI_FW_EXCEPT054 Class &1 not found typically occurs in the context of the SAP Data Migration Cockpit (DMC) or during data migration activities. This error indicates that the system is unable to find a specific class that is required for the operation you are trying to perform.
  Cause:
  
  
  Missing Class: The specified class (denoted by &1 in the error message) is not available in the system. This could be due to:
  
  The class not being activated.
  The class not being transported to the system.
  The class being deleted or not properly installed.
  
  
  
  Incorrect Configuration: There may be issues with the configuration of the Data Migration Cockpit or the specific migration project you are working on.
  
  
  Authorization Issues: The user executing the operation may not have the necessary authorizations to access the class.
  
  
  Solution:
  
  
  Check Class Existence:
  
  Use transaction code SE80 or SE24 to check if the class exists in the system. If it does not exist, you may need to transport it from another system or create it if it is a custom class.
  
  
  
  Activate the Class:
  
  If the class exists but is not activated, activate it using transaction SE80 or SE24.
  
  
  
  Transport the Class:
  
  If the class is missing, check if it is available in the development system and transport it to the target system.
  
  
  
  Review Configuration:
  
  Ensure that the Data Migration Cockpit is properly configured. Check the settings and parameters related to the migration project.
  
  
  
  Check Authorizations:
  
  Verify that the user has the necessary authorizations to access the class and perform the migration activities.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the Data Migration Cockpit for any specific requirements or known issues.
  
  
  
  SAP Support:
  
  If the issue persists, consider reaching out to SAP Support for further assistance, especially if it involves standard classes or components.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Version Compatibility: Ensure that you are using compatible versions of the SAP system and the Data Migration Cockpit, as discrepancies can lead to such errors.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.