How To Fix EM117 - Migration class &1 cannot be assigned to existing migration object

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 117

• Message text: Migration class &1 cannot be assigned to existing migration object

What causes this issue?

Migration classes BDC and HYPER are reserved. The system automatically
assigns them for BDC Migration objects and hyper objects.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

Enter another migration class.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EM117 - Migration class &1 cannot be assigned to existing migration object ?

  The SAP error message EM117, which states "Migration class &1 cannot be assigned to existing migration object," typically occurs during the migration process when there is an issue with the assignment of a migration class to a migration object. This error can arise in various scenarios, particularly when using SAP's data migration tools or during system upgrades.
  Cause:
  
  
  Incompatible Migration Class: The migration class you are trying to assign may not be compatible with the existing migration object. This can happen if the migration class is intended for a different type of data or if it has been defined incorrectly.
  
  
  Existing Migration Object: The migration object you are trying to modify may already have a different migration class assigned to it, which conflicts with the new assignment.
  
  
  Configuration Issues: There may be configuration issues in the migration settings or in the underlying data model that prevent the assignment.
  
  
  Version Mismatch: If you are working with different versions of SAP or migration tools, there may be discrepancies that lead to this error.
  
  
  Solution:
  
  
  Check Migration Class Compatibility: Verify that the migration class you are trying to assign is compatible with the existing migration object. You may need to consult the documentation or SAP notes related to the specific migration class and object.
  
  
  Review Existing Assignments: Check the current assignments of the migration object. If it already has a migration class assigned, you may need to remove it or create a new migration object.
  
  
  Correct Configuration: Ensure that all configurations related to the migration process are set up correctly. This includes checking the settings in the SAP system and ensuring that all necessary prerequisites are met.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its documentation and provides fixes for known issues.
  
  
  Testing in a Sandbox Environment: If possible, replicate the issue in a sandbox environment to test different configurations and assignments without affecting the production system.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  
  Related Information:
  
  SAP Migration Tools: Familiarize yourself with the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, Data Migration Workbench) and their documentation.
  Data Migration Best Practices: Review best practices for data migration in SAP, including data cleansing, mapping, and validation processes.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the EM117 error and implement a suitable solution.