How To Fix CNV_DMC_MC059 - Length of data type '&1' must be '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 059

• Message text: Length of data type '&1' must be '&2'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC059 - Length of data type '&1' must be '&2' ?

  The SAP error message CNV_DMC_MC059 indicates that there is a mismatch in the expected length of a data type in a data conversion or migration process. This error typically arises during data migration activities, especially when using tools like the SAP Data Migration Cockpit or SAP S/4HANA Migration Cockpit.
  Cause:
  The error occurs when the length of a data field in the source system does not match the expected length defined in the target system. This can happen due to:
  
  Data Model Differences: The source and target systems may have different data model definitions, leading to discrepancies in field lengths.
  Configuration Issues: Incorrect configuration settings in the migration tool or data mapping can lead to this error.
  Data Quality Issues: The data being migrated may contain values that exceed the defined length in the target system.
  
  Solution:
  To resolve the CNV_DMC_MC059 error, you can take the following steps:
  
  Check Data Mapping: Review the data mapping configuration in the migration tool to ensure that the source and target field lengths are correctly defined.
  Adjust Field Lengths: If possible, adjust the field lengths in the target system to accommodate the data from the source system. This may involve modifying the data model in the target system.
  Data Cleansing: Cleanse the data in the source system to ensure that no values exceed the expected length. This may involve truncating or modifying data entries.
  Review Migration Rules: Ensure that the migration rules are correctly set up to handle the data types and lengths appropriately.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the expected data types and lengths.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on data migration issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit or S/4HANA Migration Cockpit for best practices and troubleshooting tips.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the root cause of the CNV_DMC_MC059 error and implement a suitable solution to resolve it.