How To Fix MDG_BS_MAT_SI028 - Key mapping for & is not maintained

SAP Error Message - Details

• 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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_BS_MAT_SI028 - Key mapping for & is not maintained ?

  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 transferred correctly.
  
  Solution:
  
  
  Maintain Key Mapping:
  
  Go to the relevant transaction in SAP to maintain key mapping. This is usually done in the MDG application where you can define the mapping between the source and target systems.
  Ensure that the key mapping for the material in question is created and correctly configured.
  
  
  
  Check Configuration:
  
  Review the configuration settings in the MDG system to ensure that everything is set up correctly for key mapping.
  Verify that the relevant customizing settings for key mapping are in place.
  
  
  
  Data Replication Setup:
  
  If you are working with data replication, ensure that the replication model is correctly set up and that the necessary mappings are defined.
  Check the replication settings in the MDG system to ensure that they align with the target system's requirements.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific instructions on maintaining key mappings in your version of MDG.
  
  
  
  Testing:
  
  After making the necessary changes, test the process again to ensure that the error is resolved and that the key mapping works as expected.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MDGIMG for configuration or MDG_MAT for material master data management.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By addressing the key mapping issue, you should be able to resolve the error message MDG_BS_MAT_SI028 and continue with your material master data processes.