How To Fix CNV_MBT_IS021 - Merge Operation unsuccessful, Check Activity Log

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_IS - Message Class of Industry Solutions

• Message number: 021

• Message text: Merge Operation unsuccessful, Check Activity Log

What causes this issue?

While performing the merge operation of the selected Industry Solution
to the standard TDMS process, Some issue occured and Merge operation was
aborted.

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

System Response

Merge Operation unsuccessful.

How to fix this error?

Check the activity log and find out the errornous objects.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_IS021 - Merge Operation unsuccessful, Check Activity Log ?

  The SAP error message CNV_MBT_IS021: Merge Operation unsuccessful, Check Activity Log typically occurs during data migration or transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a merge operation, which is part of the data migration process, has failed.
  Causes:
  
  Data Conflicts: There may be conflicts in the data being merged, such as duplicate entries or inconsistencies in the data format.
  Missing Data: Required fields may be missing in the source data, leading to an unsuccessful merge.
  Incorrect Mapping: The mapping of fields between the source and target systems may not be correctly defined.
  Technical Issues: There could be underlying technical issues, such as database locks, connectivity problems, or system resource limitations.
  Validation Errors: The data being processed may not meet the validation rules defined in the target system.
  
  Solutions:
  
  Check Activity Log: The first step is to check the activity log for detailed error messages. This log will provide insights into what specifically went wrong during the merge operation.
  Data Validation: Review the source data for any inconsistencies, duplicates, or missing values. Ensure that all required fields are populated correctly.
  Mapping Review: Verify the mapping configuration to ensure that all fields are correctly aligned between the source and target systems.
  Data Cleansing: Cleanse the data to remove duplicates and correct any inconsistencies before attempting the merge again.
  System Resources: Ensure that the system has adequate resources (memory, processing power) to handle the merge operation.
  Retry the Operation: After addressing the issues identified in the activity log, retry the merge operation.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message.
  Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  Testing: If possible, conduct tests in a development or sandbox environment before executing the merge in a production environment to minimize risks.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully complete the merge operation.