How To Fix USMD6023 - Key field &1 missing in transfer structure for download or upload

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD6 - Messages for Data Transfer

• Message number: 023

• Message text: Key field &1 missing in transfer structure for download or upload

What causes this issue?

Before you can execute the upload or download, you need to copy all key
fields of the entity type into the transfer structure.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the field selection for the transfer structure.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD6023 - Key field &1 missing in transfer structure for download or upload ?

  The SAP error message USMD6023 indicates that a key field is missing in the transfer structure during a data upload or download process, particularly in the context of SAP Master Data Governance (MDG). This error typically arises when the system expects a certain key field to be present in the data structure but it is not found.
  Cause:
  
  Missing Key Field: The key field that is required for the data transfer is not included in the transfer structure. This could be due to a misconfiguration or an oversight in the data mapping.
  Incorrect Data Model: The data model being used for the upload/download may not align with the expected structure in the MDG configuration.
  Customizations: If there are custom fields or modifications in the data model, they may not be properly reflected in the transfer structure.
  
  Solution:
  
  Check Transfer Structure: Review the transfer structure being used for the upload/download process. Ensure that all required key fields are included.
  Update Data Model: If the data model has been changed, ensure that the transfer structure is updated accordingly to reflect these changes.
  Configuration Review: Go through the MDG configuration settings to ensure that the key fields are correctly defined and mapped.
  Data Mapping: Verify the data mapping between the source and target systems. Ensure that the key fields in the source data correspond to the expected key fields in the target structure.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of MDG you are using for any known issues or additional configuration steps that may be required.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on configuring transfer structures in MDG.
  MDG Configuration: Familiarize yourself with the MDG configuration settings, especially those related to data modeling and transfer structures.
  Testing: After making changes, conduct thorough testing to ensure that the upload/download process works as expected without triggering the error.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who specializes in MDG for further assistance.