Generally speaking, a principal or office admin may “manually fill” you into an assignment (thereby bypassing the call-out system) only if you are being asked to return for the regular teacher in the same assignment for consecutive days. You will receive an email from Easy Connect confirming the assignment.
If you are asked to return for the same teacher on the next day, it is a best practice to ask the principal or office admin to enter the assignment into Easy Connect as soon as possible. Doing so will prevent the system from calling you for the following day(s), and your name will stay near the top of the call-out order for future assignments.