Only the Admin of the Business Manager can successfully connect to Shoelace. If you are not sure about the permissions you have on the Business Manager, follow these steps below to find out:
Scroll down to find your name
On the right pane, under your name find your "Role"
The only two permissions on a Business Manager are "Employee" or "Admin".
If your role is currently set to "Employee" on the Business Manager, you will need to contact the Admin and ask them to make you an Admin as well. Alternatively, you can ask them to log into Shoelace and establish the connection themselves.