All Shopee users can only change their username once.
To change your username via Shopee App, go to the Me tab > Select ⚙ icon > Account & Security > Tap Username > Enter new username > Save.
If you are unable to change your username, it is likely that it has already been changed before. If you wish to change it again, contact us via the channels at the bottom of the page.
⚠️ Note: Username changes will be reviewed by Shopee. You will be notified of the outcome via in-app notification.