How To Fix CNV_NCE_BAS180 - No subobject mapping values exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 180

• Message text: No subobject mapping values exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS180 - No subobject mapping values exist ?

  The SAP error message CNV_NCE_BAS180 indicates that there are no subobject mapping values available for a specific operation or process in the context of data conversion or migration. This error typically arises during the execution of a data migration project, particularly when using SAP's tools for data conversion, such as the SAP S/4HANA Migration Cockpit or other data migration solutions.
  Cause:
  
  
  Missing Mapping Values: The primary cause of this error is that the system is unable to find the necessary mapping values for subobjects in the data conversion process. This can happen if the mapping configuration is incomplete or if the required mapping entries have not been defined in the system.
  
  
  Incorrect Configuration: If the configuration settings for the data migration are incorrect or not aligned with the source and target data structures, it can lead to this error.
  
  
  Data Model Changes: Changes in the data model or structure between the source and target systems can also result in missing mappings.
  
  
  Inadequate Authorization: Sometimes, the user executing the migration may not have the necessary authorizations to access the mapping values.
  
  
  Solution:
  
  
  Check Mapping Configuration: Review the mapping configuration in the data migration tool you are using. Ensure that all necessary subobject mapping values are defined and correctly configured.
  
  
  Define Missing Mappings: If you identify that certain mappings are missing, you will need to create or define these mappings in the system. This may involve using transaction codes or tools specific to the migration process.
  
  
  Review Data Model: Ensure that the data model in the source system aligns with the target system. If there have been changes, update the mapping accordingly.
  
  
  Authorization Check: Verify that the user executing the migration has the appropriate authorizations to access and modify the mapping values.
  
  
  Consult Documentation: Refer to the official SAP documentation or guides related to the specific migration tool you are using. This can provide insights into common issues and their resolutions.
  
  
  Testing: After making changes, conduct tests to ensure that the mappings are now recognized and that the migration process can proceed without errors.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  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 occurs.
  
  By following these steps, you should be able to identify the root cause of the CNV_NCE_BAS180 error and implement a solution to resolve it.