1st %@
Group.Setup.ApproveNewMembersApplyToExistingInviteLinksEnable
OR
Group.Setup.ApproveNewMembersApplyToExistingInviteLinksDisable

2nd %@
Group.Setup.ApproveNewMembers
OR
Channel.Setup.ApproveNewSubscribers

3rd %@
The number of existing links

4th %@
Group.Setup.ApproveNewMembersApplyToExistingInviteLinksPeerGroup
OR
Group.Setup.ApproveNewMembersApplyToExistingInviteLinksPeerChannel