How To Fix CNV_20100173 - Mapping contains different significant lengths for target CoA &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 173

• Message text: Mapping contains different significant lengths for target CoA &1

What causes this issue?

The system found that in the activity <ZK>Specify Mapping Values (Chart
of Accounts)</> in the view <ZK>Old/new chart of accounts</> different
values were entered in the different lines for the significant length
for target chart of accounts &V1&.

System Response

This is not allowed.

How to fix this error?

Enter the same significant length in all relevant lines.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100173 - Mapping contains different significant lengths for target CoA &1 ?

  The SAP error message CNV_20100173 indicates that there is a mismatch in the significant lengths of the target Chart of Accounts (CoA) during a data migration or conversion process. This typically occurs when the mapping of account numbers between the source and target CoA does not align correctly in terms of their lengths, which can lead to issues in data consistency and integrity.
  Cause:
  
  Different Lengths: The source and target CoA account numbers have different lengths. For example, if the source account number is 10 characters long and the target account number is 12 characters long, this discrepancy can trigger the error.
  Mapping Configuration: The mapping configuration may not have been set up correctly, leading to inconsistencies in how account numbers are interpreted between the source and target systems.
  Data Quality Issues: There may be issues with the data quality in the source system, such as leading zeros or padding that are not accounted for in the mapping.
  
  Solution:
  
  Review Mapping Configuration: Check the mapping configuration in the migration tool (such as SAP S/4HANA Migration Cockpit or other data migration tools) to ensure that the account numbers are mapped correctly and that the lengths are consistent.
  Adjust Lengths: If necessary, adjust the lengths of the account numbers in either the source or target CoA to ensure they match. This may involve modifying the target CoA to accommodate longer account numbers or adjusting the source data.
  Data Cleansing: Perform data cleansing on the source data to ensure that account numbers are formatted consistently. This may include removing leading zeros or ensuring that all account numbers are padded to the correct length.
  Testing: After making adjustments, conduct tests to ensure that the mapping works correctly and that the error does not reoccur.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like OB13 (to maintain the Chart of Accounts) or OBD4 (to maintain account groups) to review and adjust the CoA settings.
  Documentation: Refer to SAP documentation or guides related to data migration and the specific tools you are using for more detailed instructions on handling CoA mappings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on resolving mapping issues.
  
  By following these steps, you should be able to resolve the CNV_20100173 error and ensure a successful data migration process.