How To Fix CNV_00001212 - For table &1 both "Copy" flag and "No temporary duplicates" flag set.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 212

• Message text: For table &1 both "Copy" flag and "No temporary duplicates" flag set.

What causes this issue?

For table &V1& both "Copy" flag and "No temporary duplicates" flag are
set. This combination is not allowed.

System Response

"No temporary duplicates" flag will be deleted for table &V1&. This can
have impact on the performance of the conversion of this table.

How to fix this error?

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

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_00001212 - For table &1 both "Copy" flag and "No temporary duplicates" flag set. ?

  The SAP error message CNV_00001212 indicates that there is a conflict in the configuration of a specific table during a data migration or conversion process. Specifically, it states that for the table identified by &1, both the "Copy" flag and the "No temporary duplicates" flag are set. This situation is problematic because it suggests that the system is trying to copy data while simultaneously preventing the creation of temporary duplicates, which is contradictory.
  Cause:
  
  Configuration Conflict: The error arises from a misconfiguration in the data migration settings for the specified table. The "Copy" flag indicates that data should be copied from the source to the target, while the "No temporary duplicates" flag indicates that the system should not allow any duplicate entries, even temporarily.
  Data Integrity Rules: The combination of these flags can lead to a situation where the system cannot proceed with the data migration because it cannot satisfy both conditions simultaneously.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Table Configuration:
  
  Check the configuration settings for the table in question. You need to determine why both flags are set and whether this is intentional or an oversight.
  
  
  
  Adjust Flags:
  
  If the intention is to copy data, consider unchecking the "No temporary duplicates" flag. This will allow the system to create temporary duplicates during the migration process, which can then be resolved afterward.
  Conversely, if the goal is to prevent duplicates entirely, you may need to disable the "Copy" flag.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or migration guide relevant to the specific data migration project you are working on. This can provide insights into the best practices for configuring these flags.
  
  
  
  Test Changes:
  
  After making adjustments, run a test migration to ensure that the changes resolve the error and that data integrity is maintained.
  
  
  
  Seek Expert Help:
  
  If you are unsure about the implications of changing these flags, consider consulting with an SAP expert or a data migration specialist who can provide guidance based on the specific context of your project.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context on handling data migration issues.
  Data Migration Tools: Familiarize yourself with the tools and methodologies used for data migration in SAP, such as the SAP Data Services or SAP S/4HANA Migration Cockpit, as they may have specific guidelines for handling such errors.
  Testing Environment: Always perform changes in a testing environment before applying them to production to avoid data integrity issues.
  
  By following these steps, you should be able to resolve the CNV_00001212 error and proceed with your data migration successfully.