How To Fix CNV_DMC_MC013 - Decimals length must be smaller than field length

SAP Error Message - Details

• 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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC013 - Decimals length must be smaller than field length ?

  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 Data Types: The source data may have been defined with a different data type or length than what is expected in the target system.
  
  Solution:
  
  Check Field Definitions: Review the field definitions in both the source and target systems. Ensure that the total length of the field is sufficient to accommodate the specified decimal places.
  Adjust Decimal Length: If the decimal length is incorrectly set, adjust it to be smaller than the total field length. For example, if the field length is 5, the maximum decimal length should be 4 or less.
  Modify Data Mapping: If you are using a data migration tool, check the mapping configuration to ensure that the decimal lengths are correctly defined according to the target field specifications.
  Data Type Verification: Ensure that the data types in the source and target systems are compatible and correctly defined.
  Testing: After making adjustments, run a test migration to verify that the error has been resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to data migration and the specific error message for any additional guidance or patches that may be available.
  Documentation: Refer to the SAP documentation for the specific data migration tool you are using, as it may provide insights into field length and decimal handling.
  Community Forums: Engage with SAP community forums or support channels for additional help and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC013 error and successfully complete your data migration or conversion process.