The group link/code is an alternative way of inviting members to your group if you don't invite them with their contact info. Each group is given a unique group link that can be shared with those you wish to invite, and can only be entered in the app, not on web. The administrator can find the group link both in the app and on web:
Go to Group > press 'Members' and 'Invite to group with link' (Enable this first if it's disabled).
Press the group link to copy or press SMS, Email etc. if you would like to share it directly. The five last letters of the link are the group code. (This is an example only) :
When someone uses the code to request access to the group, the group admin receives a notification and needs to action this, either by accepting or declining.
If the person requesting access is an adult member, the member request looks like this:
If the person requesting access is a guardian and they are adding their child to the group as well as themselves as guardian, the notification look
If the person requesting access is a parent/guardian and the junior member they wish to be linked to already exists in the group, the admin will receive a direct message and needs to link the guardian to the existing member.
Tip: If the members of your group are asking for a group code even though you have already added them as members, you should check they have registered with the same contact details that you have added them to the group with.