Message type: E = Error
Message class:  CNV_PE_UI -  
Message number: 156
Message text: Transformation rule name is missing
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The SAP error message CNV_PE_UI156 indicates that a transformation rule name is missing in the context of a data migration or conversion process, typically associated with the SAP S/4HANA Migration Cockpit or other data transformation tools.
Cause: Missing Configuration: The transformation rule that is supposed to map source data to target data is not defined or is incomplete. Incorrect Data Mapping: The data mapping configuration might not have been set up correctly, leading to the absence of a transformation rule. User Input Error: During the setup or execution of the migration process, the user may have skipped entering a required transformation rule name. Technical Issues: There could be underlying technical issues or bugs in the migration tool or the specific version of SAP being used.
Solution: Check Transformation Rules: Go to the relevant configuration settings in the SAP system and verify that all necessary transformation rules are defined. Ensure that each rule has a valid name and
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