How To Fix EM161 - Error processing legacy system key &1 for referenced migration object &2

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 161

• Message text: Error processing legacy system key &1 for referenced migration object &2

What causes this issue?

An error occured while you were processing the data for referenced
migration object &V2& for legacy system key &V1&.

System Response

Processing of the data record is terminated. The error file is updated.

How to fix this error?

Read the error description in the log. Correct the data record in the
import file.

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 EM161 - Error processing legacy system key &1 for referenced migration object &2 ?

  The SAP error message EM161 typically occurs during the migration process when there is an issue with the legacy system key associated with a migration object. This error indicates that the system is unable to process the specified legacy system key for the referenced migration object.
  Cause:
  
  Invalid Legacy System Key: The legacy system key provided may not exist or may be incorrectly formatted.
  Data Inconsistency: There may be inconsistencies in the data being migrated, such as missing or incorrect entries in the source system.
  Configuration Issues: The migration object may not be properly configured in the SAP system, leading to issues in processing the legacy data.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access or process the specified legacy system key.
  
  Solution:
  
  Verify Legacy System Key: Check the legacy system key for correctness. Ensure that it exists in the source system and is formatted correctly.
  Check Migration Object Configuration: Review the configuration of the migration object in SAP. Ensure that all necessary settings are correctly defined.
  Data Validation: Validate the data in the source system to ensure there are no inconsistencies or missing entries that could cause the error.
  User Authorizations: Ensure that the user executing the migration has the necessary authorizations to access and process the data related to the legacy system key.
  Consult Documentation: Refer to SAP documentation or migration guides specific to the migration object you are working with for any additional steps or considerations.
  Error Logs: Check the error logs for more detailed information about the error. This can provide insights into what specifically is causing the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools: If you are using specific migration tools (like SAP S/4HANA Migration Cockpit), refer to their documentation for guidance on handling errors.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.