Message type: E = Error
Message class:  CNV_CMIS_M - Message class for CMIS Migration 
Message number: 214
Message text: Unable to remove unknown nontransparent values from the table
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The SAP error message CNV_CMIS_M214 ("Unable to remove unknown nontransparent values from the table") typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or during the execution of a migration project. This error indicates that the system has encountered non-transparent values in a table that it cannot identify or remove.
Causes:
Non-Transparent Values: The error suggests that there are values in the database that are not recognized as valid or transparent. This can happen if the data was not properly formatted or if there are inconsistencies in the data.
Data Migration Issues: If you are migrating data from one system to another, there may be issues with the data mapping or transformation rules that lead to the presence of unknown values.
Custom Fields or Tables: If there are custom fields or tables that are not properly defined in the migration process, it can lead to this error.
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