Message type: E = Error
Message class:  CNV10300 - Message class for development class CNV_10300 
Message number: 145
Message text: Derivation field is emtpy! &1,&2,&3
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The SAP error message CNV10300145, which states "Derivation field is empty! &1,&2,&3," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that a required field for deriving values is empty, which prevents the process from proceeding.
Cause: Missing Data: The most common cause is that the source data does not contain values for the fields that are required for the derivation process. Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems, leading to empty fields in the target.
Configuration Issues: The configuration settings for the migration or conversion process may not be set up correctly, leading to missing values. Data Quality Issues: The source data may have quality issues, such as incomplete records or incorrect formats.
Solution: Check Source Data: Review the source data to ensure that all required fields are
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