You can invite a member to your account from 
Settings → User Management or even while you are adding host to your event.
Add members from User Management page
Follow next steps to add a new member to your account:
and click on Add User
A popup will appear for you to add the email of new member and to select the role.
You can also add multiple members at once by clicking on "Add another" button.
Once you've included all new users that you'd like to invite, simply click on the "Send Invite" button
The member will receive the invite to Join iClosed on their email, and all they need to do is to click on the "Join" button to accept the invite, continue with the sign up process and start using 
iClosed.
Bear in mind that the invite link expires after 7 days, and in case invitee didn't accept the invite within that period of time, you'd need to re-invite him from the 
Settings → User Management page or to copy invite link and send via email.
You can add team members for free while you are on free trial, but you will be charged for the total number of members according to your plan after your free trial ends/subscription starts.
Kindly note that Startup subscription plan comes with one user seat only, and additional members will be additional charge to your subscription plan (at $36/mo per user). Business subscription plan comes with 5 user seats by default.
Alternatively, you can invite users from the 
Members menu (available with Business and Enterprise subscription plans).
Learn more about pricing and features breakdown between plans here.
Add members while adding hosts to your event
We've made it easier for you to invite users while you are creating an Event and setting up Hosts (learn more about hosts here).
You can quickly invite them by clicking on the "+Invite Users" button at the bottom left of the hosts section.
Once you click on the button to add new users, a popup will appear for you to add the email of new member and to select the role. You can also add multiple members at once by clicking on "Add another" button.
Once you've finished adding users, click on the "Send Invite" button.
As soon as the invites are sent out to your users, you will see them as Hosts in the Event setup, and you will see "Pending Invitation" badges (see image above) for such users.
Important note
Users that have been invited to the app will be available for hosts selection, to be able to participate in the Event immediately, but they will not be able to start getting calls until they:
have accepted the invite and logged into account and
they've set their Availability.
Learn more