Default Username Format in HCM Cloud

Available user-name formats. Email is the default format.

User-Name Format	Description
Email	The work email (or party email, for party users) is the user name. For example, the user name for john.smith@example.com is john.smith@example.com. To make duplicate names unique, a number is added. For example, john.smith2@example.com may be used if john.smith@example.com and john.smith1@example.com already exist. Email is the default format.
FirstName.LastName	The user name is the worker's first and last names separated by a single period. For example, the user name for John Frank Smith is john.smith. To make duplicate names unique, either the user's middle name or a random character is used. For example, John Smith's user name could be john.frank.smith or john.x.smith.
FLastName	The user name is the worker's last name prefixed with the initial of the worker's first name. For example, the user name for John Smith is jsmith.
Person or party number	The party number or person number is the user name. If your enterprise uses manual person numbering, then any number that's entered during the hiring process becomes the user name. Otherwise, the number is generated automatically and can't be edited. The automatically generated number becomes the user name. For example, if John Smith's person number is 987654, then the user name is 987654.

Navigation to access the same:

• Go to the Security Console
• Click on "User Categories" (By default, you will have just one category called 'DEFAULT'.  However, you may have set up other categories, if you've set up other categories, you may need to do this for each category)
• Click on the Category Name (eg. 'DEFAULT')

• It takes you to the "DEFAULT User Category:Details" screen.  It will show a summary such as:

User category name: DEFAULT
user category description: the default user category
Next URL: <blank>
User Name Generation Rule: Email
Generate system user name when generation rule fails: -

• To change this, click on 'edit'
• there should be a drop down choice for "User Name Generation Rule".  The choice is:

FirstName.LastName
Email
FLastName
Person or party number