How To Fix CNV_10520011 - Mapping shall be created in DOWNTIME but did not exist before

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10520 - Conversion module of FI-CA FIKEY-logic

• Message number: 011

• Message text: Mapping shall be created in DOWNTIME but did not exist before

What causes this issue?

During the phase Preprocessing programs BEFORE system lock the system
checked whether data in FI-CA (tables DFKK*) needs to be changed. The
result was that no data needs to be converted, so no mapping for FI-CA
data was created automatically.
The system repeats this check in the phase Preprocessing programs DURING
system lock which is also the current phase. This time the result was
that data should be converted. The reason for this discrepancy usually
is that relevant postings in FI-CA have been made between the first and
the second execution of the check program - which should not be the
case.
Because the fields in the tables DFKK* did not contain any relevant data
at the time when the conversion programs were generated, these fields
are not considered the conversion programs.

System Response

Conversion stops with a red light (error)

How to fix this error?

The generation of the conversion programs has to be repeated so that the
new data can be considered. As a rule, this means that you have to
create a new conversion package and start all over again. If you need
support, contact SAP by creating a customer message.

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_10520011 - Mapping shall be created in DOWNTIME but did not exist before ?

  The SAP error message CNV_10520011 typically occurs during a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a mapping for a specific data object is expected to be created in a downtime phase, but it was not found in the system prior to the migration process.
  Cause:
  
  Missing Mapping Configuration: The mapping for the data object in question was not created or configured correctly before the downtime phase.
  Incorrect Migration Settings: The migration settings may not have been properly defined, leading to the system expecting a mapping that does not exist.
  Data Model Changes: Changes in the data model or structure may have led to discrepancies in the expected mappings.
  Incomplete Preparation: The preparation steps for the migration may not have been fully completed, resulting in missing mappings.
  
  Solution:
  
  Check Mapping Configuration: Review the mapping configuration in the migration cockpit or relevant tool to ensure that all necessary mappings are defined.
  Create Missing Mappings: If the mapping is indeed missing, create it manually or through the appropriate configuration steps in the migration tool.
  Review Migration Documentation: Consult the migration documentation to ensure that all prerequisites and steps have been followed correctly.
  Run Pre-Migration Checks: Use any available pre-migration checks or validation tools to identify and resolve issues before the actual migration.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  Engage SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it is often the tool used for data migration.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to ensure a smooth process.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Training and Documentation: Ensure that team members involved in the migration are trained and have access to the latest documentation regarding the migration process.
  
  By addressing the root cause of the error and following the suggested solutions, you should be able to resolve the issue and proceed with your migration successfully.