How To Fix CNV_OR_BASIS002 - Lookup '&1' is not registered in embedded specification '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OR_BASIS - Messages of package CNV_OR_BASI (basis remote components)

• Message number: 002

• Message text: Lookup '&1' is not registered in embedded specification '&2'

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OR_BASIS002 - Lookup '&1' is not registered in embedded specification '&2' ?

  The SAP error message CNV_OR_BASIS002 indicates that there is an issue with a lookup table or specification in the context of a conversion or migration process. Specifically, the message states that a lookup identified by &1 is not registered in the embedded specification &2. This typically occurs during data migration or conversion activities, often related to the SAP S/4HANA migration or other data transformation processes.
  Cause:
  
  Missing Lookup Definition: The lookup table or definition that is being referenced (&1) is not defined or registered in the specified embedded specification (&2).
  Configuration Issues: There may be configuration issues in the migration or conversion project that prevent the lookup from being recognized.
  Transport Issues: If the lookup was recently transported from another system, it may not have been properly imported or activated in the target system.
  Version Mismatch: There could be a version mismatch between the source and target systems, leading to discrepancies in the available lookups.
  
  Solution:
  
  Check Lookup Registration: Verify that the lookup table or definition (&1) is correctly defined and registered in the embedded specification (&2). You may need to create or register the lookup if it is missing.
  Review Configuration: Go through the configuration settings of your migration or conversion project to ensure that all necessary lookups are included and correctly configured.
  Transport and Activation: If the lookup was transported, ensure that it has been activated in the target system. You may need to re-transport or re-activate the relevant objects.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration or conversion process you are working on. There may be specific steps or prerequisites that need to be followed.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the lookup is being called and why it is not found.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, ensure that all necessary configurations and mappings are correctly set up.
  Community Forums: Consider searching or posting in SAP community forums or support channels for additional insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.