Can I assign a sub-domain to a particular user?

Yes. If you have multiple custom domains set up, you can assign a specific sub-domain to a user.

When adding or editing a team member, you will see a "Custom domain" field where you can make the assignment.

This ensures that the QR codes they create will use that specific domain.

For instructions on how to add or edit a team member, read: How do I add, edit or remove a team member?

For instructions on how to add a subdomain, read: How do I use my own domain for QR code links? (White Label)