You are looking for migration mode Enhance Already Existing Data, but it is not available in the drop list while migrating Basic Employee Data.
Reproducing the Issue
- Go to Business Configuration and select Implementation Projects
- Open the activity list of your project
- Search for Migration of Employee Data
- Select Migrate basic employee data using the migration tool
- Highlight any file of migration workbench
- Select the button Properties
- The option Enhance Already Existent Data is not available on field Migration Mode
The enhancement mode is not available for any Human Resource migration object.
KBA , enhance employee data , migration of employee data , enhance mode , AP-RC-BCT , Business Config. Tools (SAP Business ByDesign , How To