Message type: E = Error
Message class: MDG_BS_MAT_SI - Message Class : Material Replication Services Implementation
Message number: 028
Message text: Key mapping for & is not maintained
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The SAP error message MDG_BS_MAT_SI028 indicates that there is an issue with key mapping for a specific entity in the Master Data Governance (MDG) system, particularly related to material master data. This error typically arises when the system cannot find the necessary key mapping for the specified object, which is essential for the data replication or synchronization process.
Cause: Missing Key Mapping: The key mapping for the specified object (in this case, a material) has not been maintained in the system. This can happen if the mapping was never created or if it was deleted or not properly configured. Incorrect Configuration: There may be an issue with the configuration settings in the MDG system that prevents the key mapping from being recognized. Data Replication Issues: If you are trying to replicate data from one system to another (e.g., from MDG to an ERP system), the key mapping must exist for the data to be
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