How To Fix SDMI001 - Migration class &1 is not registered

SAP Error Message - Details

• Message type: E = Error

• Message class: SDMI - Messages of SDMI

• Message number: 001

• Message text: Migration class &1 is not registered

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDMI001 - Migration class &1 is not registered ?

  The SAP error message SDMI001: Migration class &1 is not registered typically occurs during the migration process in SAP, particularly when dealing with data migration or system upgrades. This error indicates that the migration class specified (denoted by &1) is not recognized or registered in the system.
  Cause:
  
  Unregistered Migration Class: The migration class you are trying to use has not been properly registered in the system.
  Incorrect Configuration: There may be a configuration issue where the migration class is not set up correctly in the system.
  Missing Transport: The necessary transport containing the migration class might not have been imported into the system.
  Version Compatibility: The migration class may not be compatible with the current version of the SAP system you are using.
  
  Solution:
  
  
  Check Registration: Verify if the migration class is registered in the system. You can do this by checking the relevant configuration settings or using transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator).
  
  
  Register the Migration Class: If the migration class is not registered, you may need to register it manually. This typically involves creating or modifying entries in the relevant tables or configuration settings.
  
  
  Import Missing Transports: If the migration class is part of a transport request that has not been imported, ensure that the transport is imported into the system.
  
  
  Review Documentation: Check the SAP documentation or notes related to the specific migration class you are using. There may be specific instructions or prerequisites that need to be followed.
  
  
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve compatibility issues.
  
  
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide specific guidance based on your system configuration and the migration class in question.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE80, SCC4, and SCC1 for managing data dictionary objects and transports.
  SAP Notes: Search for SAP Notes related to the specific migration class or the error message for additional troubleshooting steps or patches.
  Migration Tools: If you are using specific migration tools (like SAP S/4HANA Migration Cockpit), ensure that you are following the recommended procedures for data migration.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.