How To Fix CNV_PE_CHECK123 - Primary relation must be flagged for at least one structural mapping item

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_CHECK - Check Framework messages for posting engine

• Message number: 123

• Message text: Primary relation must be flagged for at least one structural mapping item

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_CHECK123 - Primary relation must be flagged for at least one structural mapping item ?

  The SAP error message CNV_PE_CHECK123 indicates that in the context of a data migration or conversion process, the primary relation (or primary mapping) must be flagged for at least one structural mapping item. This error typically arises during the execution of a data migration project, particularly when using SAP's Conversion Tools or the SAP S/4HANA Migration Cockpit.
  Cause:
  The error occurs when:
  
  No Primary Relation Defined: There is no primary relation defined for the structural mapping items in the migration project.
  Incorrect Mapping Configuration: The mapping configuration may not have been set up correctly, leading to the absence of a primary relation.
  Missing Flags: The required flags for the primary relation in the mapping items are not set, which is necessary for the migration process to identify the main relationship between the data entities.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Mapping Configuration:
  
  Go to the mapping configuration in the migration tool you are using (e.g., SAP S/4HANA Migration Cockpit).
  Ensure that at least one structural mapping item is marked as the primary relation.
  
  
  
  Set Primary Relation:
  
  Identify the relevant structural mapping items that should be flagged as primary.
  In the mapping settings, look for an option to set or flag an item as the primary relation and ensure it is selected.
  
  
  
  Review Documentation:
  
  Consult the SAP documentation or guides related to the specific migration tool you are using. This can provide insights into how to properly configure mappings and set primary relations.
  
  
  
  Test the Configuration:
  
  After making the necessary changes, run a test migration to ensure that the error is resolved and that the data is being processed correctly.
  
  
  
  Consult SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and the details of your migration project.
  
  
  
  Related Information:
  
  Migration Cockpit: This is a tool provided by SAP for migrating data to S/4HANA. Understanding its functionalities and how to configure mappings is crucial.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration, including how to handle relationships between data entities.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the CNV_PE_CHECK123 error and successfully proceed with your data migration project.