3339626 - Duplicate Username error while creating a new user in the system

When you try to change the username via basic import, via manage users, via people profile or via API, you face one of the errors below :

• The following users were not imported or updated because the username already exists in the system (Via Basic Import)
• Username already exist, please choose another one (Via Manage Users)
• This username exists in the system. Creating a new user requires a unique username (Via Add New Employee/Add New Hire)
• Invalid username. Please choose another (Via People Profile)
• DUPLICATE_USERNAME : Failed to add/update user [XXXX] "XXX YYYYY" (N/A;N/A;N/A): Duplicate Username - "XXXX" (Via API)

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SAP SuccessFactors HCM

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