SAP Knowledge Base Article - Public

2504645 - Cannot Use Old User Name to Rehire a Contingent Worker as Employee - EC


When trying to rehire a Contingent worker as a Full Time (Permanent) Employee, the system does not allow you to use the same old user ID for the new permanent position


  • SAP SuccessFactors Employee Central
  • Contingent Workforce

Reproducing the Issue

  1. Try to rehire a contingent worker via Admin Center > Add New Employee
  2. After entering the details of the contingent user, the system will pop up a duplicate check, and select "Accept Match"
  3. If continuing the steps with the same "Old Username", the following error is seen:

The User Name already exists. Please enter a new unique value.


Employments are separate for contingent workers and regular employees. The same username cannot be used


  • A different username must be used other than the one existing on the system
  • This applies for contingent to regular hire and vice versa

See Also


SF, success factors, EC, CWF, user name, work force, ECT-66792 , KBA , LOD-SF-EC-CWF , Contingent Workforce , LOD-SF-EC , Employee Central , Problem


SAP SuccessFactors Employee Central all versions