Message type: E = Error
Message class:  CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO) 
Message number: 209
Message text: System &1 : type/length &2/&3
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The SAP error message CNV_CMIS_A_20209 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP Conversion Management Information System (CMIS). This error indicates a problem with the data type or length of a field in the system.
Cause: The error message CNV_CMIS_A_20209 is generally caused by one of the following issues: Data Type Mismatch: The data being processed does not match the expected data type defined in the target system. For example, if a field is defined as a numeric type in the target system but the incoming data is in a character format, this error may occur. Length Exceedance: The length of the data being imported exceeds the maximum length defined for the corresponding field in the target system. For instance, if a field is defined to accept a maximum of 10 characters, but the incoming data has 15 characters, this error will be triggered.
Configuration Issues: There
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