What is the difference between a group invite code and inviting members from the admin dashboard?
Calcium Makes it Simple for Members to Join Your Group
The easiest way to invite members is to send them an email invitation from the Admin dashboard. As long as they use the same email address to login to the Member App, they will find the invitation waiting in the People area. Instructions for Members to Join via Email Invitation are here.
Using a Group Code is available for teams where corporate firewalls enforce heavy spam filtering and email invitations might not arrive in your team's inboxes. Instead of an email invitation, your team will tap the Join Group link, then enter the group code to be admitted as Members. Instructions for Members to Join via Group Code are here.
You are welcomed to choose the invitation mode that works best for your members.