Once you have set up a practitioner in SubmitKit, if you want them to have their own login access to SubmitKit (which is advisable) you need to add them as a User as well. Here is how to add them as a user:
Go to Setting-> Manage-users and devices
Click the Add User button
Enter first and last name, and email
Select whether to give claim and invoice permission
If you only want the user to view one practitioner's appointments, select the practitioner from the drop-down list. Otherwise leave it on view all practitioners
Save the user
The new user will be sent a confirmation email to confirm their account and then instructions on resetting their password
Note: If the user does not confirm their account in time, you will need to delete them as a user and them add them back in again.