https://support.appcoll.com/contacts/enable-and-disable-logins?from_search=86964903

Enabling and Disabling logins are fully controlled by an administrator of your account. From the Contacts Module, you can enable/disable a login with the click of a button.

https://support.appcoll.com/contacts/change-user-permissions-and-restrict-access?from_search=87333715

Account Administrators can change permissions for any contacts in their account. Please Note: Account admins have access to everything, so their permissions cannot be altered.

In order to change a user's permissions, open their contact record and click the "Permissions" button on the left.