2850862 - Why Username is same as UserID while creating Concurrent Employment via Import ?

When we add Concurrent Employment via UI, the new username created for secondary assignment is created as the main assignment username-1, username-2 etc. When we import the additional assignment, why username assigned is same as UserID passed in the file?

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

Employee Central - Concurrent Employment

Import Concurrent Employment, CE, Concurrent Employment, username, userID, Import, person-id-external , KBA , LOD-SF-EC-CON , Concurrent Employment , Problem