How To Fix CNV_20320_CHECK012 - No target provided for source &1; mapping is not complete

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20320_CHECK - Messages for check functions (Activity Types merge)

• Message number: 012

• Message text: No target provided for source &1; mapping is not complete

What causes this issue?

The provided mapping is incomplete. A mapping line contains a source
value (&V1&) but not a target value.

System Response

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

How to fix this error?

You have to complete the mapping by providing the requested field values
or by deleting the mapping line which causes the problem.

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_20320_CHECK012 - No target provided for source &1; mapping is not complete ?

  The SAP error message CNV_20320_CHECK012 indicates that there is an issue with the data mapping during a data migration or conversion process. Specifically, it means that for a given source field (denoted by &1), there is no corresponding target field defined, which results in an incomplete mapping.
  Cause:
  
  Incomplete Mapping Configuration: The mapping between source and target fields has not been fully defined. This can happen if the mapping was not set up correctly or if some fields were omitted during the configuration.
  Missing Target Fields: The target structure may not have been fully defined or may be missing fields that correspond to the source fields.
  Data Model Changes: Changes in the data model (e.g., during an upgrade or migration) may have led to discrepancies between the source and target structures.
  
  Solution:
  
  
  Check Mapping Configuration:
  
  Go to the mapping configuration in the relevant transaction (e.g., using transaction code LTMC for Migration Cockpit or LTMOM for Migration Object Modeler).
  Ensure that all source fields have corresponding target fields defined.
  
  
  
  Define Missing Target Fields:
  
  If you identify that certain target fields are missing, you may need to add them to the target structure.
  Ensure that the data types and lengths of the fields are compatible.
  
  
  
  Review Migration Objects:
  
  If you are using predefined migration objects, check if there are updates or corrections available for those objects.
  Sometimes, SAP provides updates or notes that address specific mapping issues.
  
  
  
  Consult Documentation:
  
  Review the documentation for the specific migration tool or process you are using. There may be specific guidelines or requirements for mapping that need to be followed.
  
  
  
  Testing:
  
  After making changes to the mapping, perform a test run of the migration to ensure that the error is resolved and that data is being mapped correctly.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC, LTMOM, or SE11 (for data dictionary) to check structures and mappings.
  SAP Notes: Search for SAP Notes related to the specific migration tool you are using, as they may provide additional insights or fixes for known issues.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to resolve the CNV_20320_CHECK012 error and ensure that your data mapping is complete and accurate.