How To Fix CNV_20306_CHECK023 - No target provided for source &1; mapping is not complete

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20306_CHECK - Message Class for package CNV_20306_CHECK

• Message number: 023

• 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 relevant line.

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_20306_CHECK023 - No target provided for source &1; mapping is not complete ?

  The SAP error message CNV_20306_CHECK023 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:
  
  
  Missing Target Mapping: The primary cause of this error is that the mapping configuration for the data migration does not include a target field for the specified source field. This can happen if the mapping was not fully defined or if there are discrepancies in the data model between the source and target systems.
  
  
  Incorrect Configuration: There may be an error in the configuration settings or the mapping rules that were set up for the data migration process.
  
  
  Data Model Changes: If there have been changes in the data model of either the source or target system after the mapping was initially created, it could lead to missing mappings.
  
  
  Solution:
  
  
  Check Mapping Configuration: Review the mapping configuration for the data migration. Ensure that every source field has a corresponding target field defined. You can do this by accessing the mapping tool or transaction used for the migration.
  
  
  Define Missing Mappings: If you identify any source fields that do not have a target mapping, you will need to define the appropriate target fields for those source fields.
  
  
  Validate Data Model: Ensure that the data models of both the source and target systems are aligned. If there have been changes, update the mapping accordingly.
  
  
  Use Migration Tools: If you are using SAP's migration tools (like SAP S/4HANA Migration Cockpit), ensure that you are following the correct procedures and that all necessary configurations are in place.
  
  
  Testing: After making the necessary adjustments, perform a test run of the migration to ensure that the error is resolved and that the data is being mapped correctly.
  
  
  Related Information:
  
  Transaction Codes: Depending on the specific migration tool you are using, you may need to use specific transaction codes (like LTMC for Migration Cockpit) to access the mapping configuration.
  Documentation: Refer to SAP documentation related to the specific migration tool you are using for detailed instructions on how to set up and validate mappings.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to this error message.
  
  By following these steps, you should be able to resolve the CNV_20306_CHECK023 error and ensure that your data migration process runs smoothly.