After your initial username modification you are only allowed to alter it as soon as, according to the guidelines and guidelines of Facebook.
How To Get My Facebook Url
Get a New URL.
Action. 1 Visit to Facebook.
Action. 2 Clear the URL bar, and enter "www.facebook.com/username." Select from the list of offered names, or
inspect the box beside the empty field to enter a custom username.
Action. 3 Click the "Examine Availability" button, and click the "Confirm" button to complete the procedure.
Modification Your Existing URL.
Action. 1 Click the "Settings" button at the top of the Facebook website.
Action. 2 Click the "Change" link next to the "Username" area. Highlight your existing user name and press the "Delete" or
"Backspace" button to eliminate the existing name, and type in a new username.
Action. 3 Click the "Check Schedule" button, and click "Validate" to finish the switch How To Get My Facebook Url.