Message type: E = Error
Message class:  CNV_IUUC_REPL_ADV_SE - MEssage class for package CNV_IUUC_REPL_ADV_SETTINGS 
Message number: 201
Message text: Reference field is not saved. It is used only for a CURR or QUAN field
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The SAP error message CNV_IUUC_REPL_ADV_SE201 indicates that there is an issue with the handling of reference fields in the context of currency (CURR) or quantity (QUAN) fields during data replication or conversion processes. This error typically arises in scenarios involving the SAP Landscape Transformation (SLT) or data migration processes where data types and their relationships are critical.
Cause: Data Type Mismatch: The error usually occurs when a reference field is not properly defined or is being used incorrectly in relation to a CURR or QUAN field. For example, if a reference field is expected to hold a currency or quantity value but is not set up to do so, this error can be triggered.
Configuration Issues: There may be issues in the configuration of the data model or the mapping of fields in the transformation rules. Missing or Incorrect Mapping: If the mapping between the source and target fields is not correctly defined, it
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