In order to delete a group, it must be empty of members. If the group has no members, you can delete it from the web dashboard. Go to the left menu "Groups" -> "Settings" and find the relevant group from the dropdown menu.
If the group is empty of members, you will get the option to "Delete group" at the bottom of the page. If the group was accidentally deleted, you can contact us in support to reactivate it.
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