Message type: E = Error
Message class:  CNV_PE - General messages for posting engine 
Message number: 029
Message text: No interface mapping found
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The SAP error message CNV_PE029: No interface mapping found typically occurs in the context of data migration or conversion processes, particularly when using SAP's tools for data transfer, such as the SAP S/4HANA Migration Cockpit or other data migration solutions. This error indicates that the system is unable to find a mapping between the source data and the target structure in the migration process. Causes: Missing Mapping Configuration: The most common cause is that the necessary interface mapping has not been defined or is missing in the configuration settings. Incorrect Source/Target Structure: The source data structure may not match the expected structure in the target system, leading to a failure in finding the appropriate mapping. Incompatible Data Types: There may be data type mismatches between the source and target fields that prevent successful mapping. Transport Issues: If the mapping was recently transported from another system, there may have been issues during the transport process that
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