How To Fix CNV_DMC_MC064 - We recommend placing key fields at the top of the table

CNV_DMC_MC064 - Overview

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 064

• Message text: We recommend placing key fields at the top of the table

We recommend placing key fields at the top of the table.
This is particularly important if you are working with staging tables.
If key fields are not defined at the top of the table, it might not be
possible to create a staging table for the source structure.

Error message extract from SAP system. Copyright SAP SE.

CNV_DMC_MC064 - Details

• The SAP error message CNV_DMC_MC064, which states "We recommend placing key fields at the top of the table," typically arises during data migration or data conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This message is a recommendation rather than a critical error, but it indicates that the structure of the data table could be optimized for better performance and clarity.
  
  Cause:
  The message is triggered when the data structure (table) being used for migration does not have its key fields positioned at the top. Key fields are essential for identifying records uniquely, and having them at the top of the table can improve readability and processing efficiency.
  
  Solution:
  To resolve this issue, you should rearrange the fields in your data table so that the key fields are placed at the top. Here are the steps to do this:
  
  
  Identify Key Fields: Determine which fields in your data table