1650104 - Is It Possible to Maintain the Same Employee ID for Different Employees in Different Companies

In your corporation there may be multiple affiliated companies. You want to know if it is possible to maintain the same employee ID for different employees in different companies. The payroll provider of companies may already assign a fixed ID to the employees. So duplicate ID for employees in different companies may occur in this case. 

Currently, it is not possible to assign the same ID to different employees in different companies/org units.

So you have to create an employee with unique ID.

KBA , employee id , SRD-HR-PAD , Personnel Administration , How To