How To Fix CNV_20800189 - Mapping entries not maintained for validation

CNV_20800189 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 189

• Message text: Mapping entries not maintained for validation

Self-Explanatory Message

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CNV_20800189 - Details

• The SAP error message CNV_20800189 indicates that there are missing mapping entries for a validation process in a data conversion or migration scenario. This error typically arises during the execution of a data migration project, particularly when using SAP's Conversion Tools or during the use of the SAP S/4HANA Migration Cockpit.
  
  Cause:
  The error occurs when the system attempts to validate data but cannot find the necessary mapping entries in the relevant tables. This can happen due to several reasons:
  
  Incomplete Mapping Configuration: The mapping entries required for the validation process have not been defined or are incomplete.
  Missing Customization: If the migration or conversion process involves custom fields or tables, the necessary mappings for these custom elements may not have been created.
  Incorrect Data Source: The data source being used for the migration may not have the expected structure or content, leading to missing mappings.
  Version Mismatch: If there are discrepancies between the versions of