How To Fix CNV_20900149 - The scenario is N:1 merge of vendor numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 149

• Message text: The scenario is N:1 merge of vendor numbers

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900149 - The scenario is N:1 merge of vendor numbers ?

  The SAP error message CNV_20900149 typically occurs during data migration or conversion processes, particularly when merging vendor numbers in a scenario where multiple vendor records are being consolidated into a single vendor record (N:1 merge). This error indicates that there is an issue with the merging process, which can arise from various causes.
  Causes:
  
  Data Inconsistencies: There may be inconsistencies in the vendor data being merged, such as duplicate entries, missing mandatory fields, or conflicting information.
  Configuration Issues: The configuration settings for the data migration tool or the specific merge process may not be set up correctly.
  Validation Errors: The data being merged may not meet the validation criteria defined in the system, leading to errors during the merge process.
  Dependencies: There may be dependencies or relationships (e.g., open purchase orders, contracts) associated with the vendor numbers that are being merged, which need to be resolved first.
  
  Solutions:
  
  Data Cleansing: Review and clean the vendor data before attempting the merge. Ensure that there are no duplicates, and that all mandatory fields are filled out correctly.
  Check Configuration: Verify the configuration settings for the data migration tool or the merge process. Ensure that all necessary parameters are correctly set.
  Review Validation Rules: Check the validation rules in the system to ensure that the data being merged complies with these rules.
  Resolve Dependencies: Identify and resolve any dependencies related to the vendor numbers being merged. This may involve closing open transactions or reassigning related data.
  Use Transaction Codes: Utilize relevant transaction codes (e.g., BP for Business Partner) to manually check and adjust vendor records if necessary.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool or process you are using for additional guidance.
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to the error message CNV_20900149, as they may provide specific fixes or workarounds.
  Migration Tools: Familiarize yourself with the specific migration tools being used (e.g., SAP S/4HANA Migration Cockpit, LSMW) and their documentation for best practices.
  Testing: Before executing the merge in a production environment, conduct thorough testing in a development or quality assurance environment to identify potential issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.