Message type: E = Error
Message class:  CNV_IUUC_REPL_ADV_SE - MEssage class for package CNV_IUUC_REPL_ADV_SETTINGS 
Message number: 004
Message text: Select only one rule
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The SAP error message CNV_IUUC_REPL_ADV_SE004 typically occurs during the data replication process in SAP systems, particularly when using the SAP Landscape Transformation (SLT) replication server. This error indicates that the system expects only one rule to be selected for a specific operation, but multiple rules have been selected or none at all.
Cause: Multiple Rules Selected: The error is often caused by the selection of multiple transformation rules when the system expects only one. This can happen if the configuration of the replication setup is not correctly defined.
Configuration Issues: There may be issues in the configuration of the SLT system or the source and target systems that lead to ambiguity in rule selection. Data Model Changes: Changes in the data model or the underlying database structure can also lead to this error if the rules are not updated accordingly.
Solution: Review Rule Selection: Check the configuration in the SLT replication setup. Ensure that only one
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