Message type: E = Error
Message class:  CNV_DMC_MC - Migration Object Modeler 
Message number: 013
Message text: Decimals length must be smaller than field length
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The SAP error message CNV_DMC_MC013 indicates that there is an issue with the decimal length of a field in a data migration or conversion process. Specifically, it means that the number of decimal places specified for a numeric field exceeds the total length of that field. This can occur during data migration activities, especially when using tools like the SAP Data Migration Cockpit or other conversion tools.
Cause: Field Length Mismatch: The defined decimal length for a numeric field is greater than the total length of the field. For example, if a field is defined as having a total length of 5 and you are trying to set it to have 3 decimal places, this will trigger the error because the maximum number of digits (including decimals) cannot exceed the total length. Data Mapping Issues: During the mapping of source data to target fields, the decimal lengths may not have been correctly configured. Incorrect
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