How To Fix CNV_PE_UI081 - Existing rule (if existing) will irretrievably be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_UI -

• Message number: 081

• Message text: Existing rule (if existing) will irretrievably be deleted

What causes this issue?

A new transformation rule with a new name (semantic ID) and new
technical ID (GUID) is created. The old transformation rule is deleted
locally in this system.

System Response

Important information

How to fix this error?

Be aware that the old- and new transformation rule is not added to any
transport request.
You must manually add the new transformation rule to a transport
request.
If the old transformation rule has to be deleted in the system
landscape, it must be added to a transport request prior to executing
this activity.
Trying to upload the new transformation rule (in the context of the
Posting Engine project download/upload) will fail if the target system
is not-modifiable. Such a new transformation rule can only be imported
by transport into a not-modifiable system.

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_PE_UI081 - Existing rule (if existing) will irretrievably be deleted ?

  The SAP error message CNV_PE_UI081 typically occurs during the execution of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This message indicates that an existing rule (if it exists) will be irretrievably deleted, which can be concerning if you are not prepared for this action.
  Cause:
  
  Existing Rules: The error usually arises when you attempt to create or modify a migration rule that conflicts with an existing rule. The system is warning you that the existing rule will be deleted as part of the process.
  Data Migration Process: This message is often seen in the context of data migration projects where rules are defined for data transformation and mapping.
  User Action: The action you are trying to perform (like creating a new rule or modifying an existing one) may lead to the deletion of the current rule.
  
  Solution:
  
  Backup Existing Rules: Before proceeding, ensure that you have a backup of any existing rules that you may need later. Document the current settings or export them if possible.
  Review the Rules: Check the existing rules to understand their purpose and whether they are still needed. If they are not needed, you can proceed with the new rule creation.
  Confirm Deletion: If you are sure that the existing rule can be deleted, confirm the action in the system. If you are unsure, consider consulting with your team or a SAP expert.
  Create New Rule: After confirming the deletion, you can proceed to create the new rule as intended.
  Testing: After making changes, conduct thorough testing to ensure that the new rule works as expected and that no critical data is lost.
  
  Related Information:
  
  Documentation: Refer to the SAP Help Portal or specific documentation related to the migration tool you are using for detailed guidance on managing migration rules.
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context or solutions.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  Best Practices:
  
  Always perform changes in a development or test environment before applying them to production.
  Maintain clear documentation of all migration rules and changes made during the migration process.
  Regularly review and clean up migration rules to avoid conflicts and confusion in the future.
  
  By following these steps, you should be able to address the CNV_PE_UI081 error effectively while minimizing the risk of data loss.