How many members are allowed in a group?

Groups have a soft cap of 100 members.

For a group to have more than this, you have 2 options:

1. New members must use a referral link to have the ability to join a group. The referral link can be provided by any current member of the group. With referral links, a group can increase up to a hard cap of 120 members.
2. Supporters who are group moderators can set the limit of the group to no limit

Here is where you can find the referral link: 

 

Here is where you can change the group setting under the group edit page: