How To Fix CNV_DMC_WDA057 - Cannot delete the project; migration objects with data remain

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 057

• Message text: Cannot delete the project; migration objects with data remain

What causes this issue?

If data exists in the staging tables of any migration object in the
project, the project cannot be deleted.

System Response

Migration objects without data are deleted and their status are changed
to Not Started. Migration objects with data remain with the status In
Process.

How to fix this error?

To delete the project, delete the data in the staging tables of
migration objects with the status In Process.

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 CNV_DMC_WDA057 - Cannot delete the project; migration objects with data remain ?

  The SAP error message CNV_DMC_WDA057 indicates that you are trying to delete a migration project, but there are still migration objects associated with that project that contain data. This is a common issue when working with SAP Data Migration Cockpit (DMC) or similar tools, where the system prevents the deletion of a project to ensure data integrity.
  Cause:
  The primary cause of this error is that there are migration objects within the project that have already been populated with data. The system does not allow the deletion of a project if it still has associated data, as this could lead to inconsistencies or loss of important information.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Migration Objects: 
  
  Go to the migration project in the SAP Data Migration Cockpit.
  Identify the migration objects that are still holding data.
  
  
  
  Delete Data from Migration Objects:
  
  If you no longer need the data in those migration objects, you can delete the data associated with them. This can usually be done through the DMC interface or by using specific transaction codes related to the migration objects.
  
  
  
  Remove Migration Objects:
  
  If you want to keep the project but remove specific migration objects, you can delete those migration objects from the project.
  
  
  
  Confirm Deletion:
  
  After ensuring that all migration objects are either cleared of data or removed, attempt to delete the project again.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no dependencies or references to the migration objects in other projects or processes that might prevent deletion.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help you manage migration objects, such as LTMC (for the Migration Cockpit) or LTMOM (for the Migration Object Modeler).
  Documentation: Refer to SAP documentation for the Data Migration Cockpit for detailed instructions on managing migration projects and objects.
  Support: If you continue to face issues, consider reaching out to SAP support or consulting with your SAP Basis or functional team for assistance.
  
  By following these steps, you should be able to resolve the CNV_DMC_WDA057 error and successfully delete your migration project.