To create logins for your pickers:
Go to Hub and then Team
Scroll down to 'invite a picker' (not 'invite a staff member')
Add the picker's name, username, and level of access (which site they'll be picking for)
Go to 'update password' and set a password
Once you've completed these steps, your picker can download the Order Picker onto a compatible device and log in using the credentials you just created.
If you have any issues or questions along the way, don't hesitate to contact our support team via Hub. We're here to help.