How To Fix CNV_DMC_MC113 - Key field &1 of &3 will be excluded from the staging table; see long text

CNV_DMC_MC113 - Overview

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 113

• Message text: Key field &1 of &3 will be excluded from the staging table; see long text

What causes this issue?

For view &V2&, the key field &V1& of the source structure &V3& is set to
?Not Visible?. This means that the key field will not be part of the
generated staging table for this view. This may result in data loss
during the transfer. We recommend checking whether you really want to
exclude the key field.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_DMC_MC113 - Details

• The SAP error message CNV_DMC_MC113 indicates that a key field in a staging table is being excluded from processing during a data migration or conversion process. This typically occurs in the context of using the SAP Data Migration Cockpit (DMC) or similar tools for data migration.
  
  Cause:
  The error message usually arises due to one of the following reasons:
  
  
  Key Field Issues: The key field specified in the error message may not be properly defined in the source or target system. This could be due to missing data, incorrect data types, or mismatched definitions between the source and target systems.
  
  
  Data Integrity Violations: The data in the key field may violate integrity constraints, such as uniqueness or referential integrity, which prevents it from being included in the staging table.
  
  
  
  Configuration Issues: There may be configuration issues in the migration settings that lead to the exclusion of certain fields.
  
  
  Mapping Errors: The mapping of fields between the