How To Fix CNV20200290 - &1 blank! conversion rule for &2= (&3,&4) not applicable

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 290

• Message text: &1 blank! conversion rule for &2= (&3,&4) not applicable

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200290 - &1 blank! conversion rule for &2= (&3,&4) not applicable ?

  The SAP error message CNV20200290 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a missing or invalid conversion rule for a specific field or entity during the data transformation process.
  Cause:
  
  Missing Conversion Rule: The error suggests that there is no defined conversion rule for the specified field (&2) in the context of the data being processed. This could happen if the mapping for the data transformation is incomplete or not properly configured.
  Blank Value: The message indicates that the value for the field is blank, which may not be acceptable based on the defined rules or constraints in the target system.
  Incompatible Data Types: The data types of the source and target fields may not match, leading to the inability to apply the conversion rule.
  Configuration Issues: There may be issues in the configuration of the migration project, such as missing entries in the mapping tables or incorrect settings.
  
  Solution:
  
  Check Conversion Rules: Review the conversion rules defined for the specific field (&2). Ensure that there is a valid mapping for the source data to the target structure.
  Update Mapping: If the conversion rule is missing, you may need to create or update the mapping in the migration cockpit or relevant configuration settings.
  Validate Source Data: Ensure that the source data does not contain blank values for the fields that require conversion. If necessary, clean or preprocess the data before migration.
  Review Data Types: Check the data types of the source and target fields to ensure compatibility. If there are discrepancies, adjust the data types accordingly.
  Consult Documentation: Refer to SAP documentation or guides related to the specific migration project you are working on. This may provide insights into required configurations and common pitfalls.
  Use SAP Notes: Search for relevant SAP Notes that may address this specific error message. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler) to manage your migration projects.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.