How To Fix CNV20200499 - Table CNV_20200_SNAP is already filled for package &1

CNV20200499 - Overview

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 499

• Message text: Table CNV_20200_SNAP is already filled for package &1

What causes this issue?

Table CNV_20200_SNAP is already filled for package &V1&.

System Response

Information.

How to fix this error?

Table CNV_20200_SNAP is left unchanged.

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.

CNV20200499 - Details

• The SAP error message CNV20200499, which states that "Table CNV_20200_SNAP is already filled for package &1," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system has detected that the specified table (CNV_20200_SNAP) has already been populated with data for the given package, and it is not allowing duplicate entries.
  
  Cause:
  
  Duplicate Execution: The most common cause of this error is that the migration or conversion process is being executed multiple times for the same package without clearing the previous entries.
  Incomplete Rollback: If a previous migration attempt was interrupted or failed, it might have left the table populated, leading to this error on subsequent attempts.
  
  Configuration Issues: There may be issues with the configuration of the migration package or the data mapping that could lead to this error.
  
  
  Solution:
  
  Check Existing Data: Before running the migration again, check the contents