How To Fix EM178 - You cannot delete an autostructure in a referenced migration object

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 178

• Message text: You cannot delete an autostructure in a referenced migration object

What causes this issue?

Migration object &V1& has references in hyper objects in company &V2&
(for example, in hyper object &V3&).
You can only delete an auto structure in a migration object once the
auto structures with references to migration object &V1& have been
deleted in all affected hyper objects.

System Response

INCLUDE ISU_VERARB OBJECT DOKU ID TX

How to fix this error?

Delete the references to the migration object.

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 EM178 - You cannot delete an autostructure in a referenced migration object ?

  The SAP error message EM178, which states "You cannot delete an autostructure in a referenced migration object," typically occurs in the context of data migration or when working with migration objects in SAP systems. This error indicates that you are attempting to delete an autostructure that is being referenced by a migration object, which is not allowed.
  Cause:
  
  Autostructure Reference: The autostructure you are trying to delete is being used in a migration object. Migration objects are used to facilitate the transfer of data from one system to another, and they often reference various structures, including autostructures.
  Data Integrity: SAP enforces data integrity rules, which prevent the deletion of structures that are still in use. This is to ensure that the migration process remains consistent and that no references are broken.
  
  Solution:
  
  Check References: Before attempting to delete the autostructure, check if it is being referenced by any migration objects. You can do this by reviewing the migration object definitions in the SAP system.
  Remove References: If the autostructure is indeed referenced, you will need to remove those references first. This may involve modifying the migration object to no longer use the autostructure.
  Consult Documentation: Review the SAP documentation related to migration objects and autostructures to understand the dependencies and how to manage them properly.
  Use Transaction Codes: Utilize transaction codes like LTMC (Legacy Transfer Migration Cockpit) or LTMOM (Migration Object Modeler) to manage migration objects and their associated structures.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific scenario.
  
  Related Information:
  
  Migration Objects: These are predefined structures in SAP that facilitate the transfer of data during system migrations or upgrades.
  Autostructures: These are structures that are automatically generated by the system based on certain criteria and are often used in data migration scenarios.
  Data Migration Best Practices: Always ensure that you have a backup of your data and a clear migration plan before making changes to structures or migration objects.
  
  By following these steps, you should be able to address the EM178 error and proceed with your data migration tasks.