Usergroups are used for accesscontrol and easy communication
In CrewPlan you can create all the usergroups that your organisation could possibly use. You can use the usergroups to create shiftplans only visible to members of one or more usergroups, you can create closed intranet discussions only visible for members of one or more usergroups, usergroups makes it easy to communicate by email or text to all the members of one or more usergroup.
In the example above we've created 4 usergroups and added the volunteers to each.
Direct link to signing up to a usergroup
You could also use the usergroups to keep track of which volunteers comes from specific campaigns, perhaps you have arrangement with the local scouts and share a signup-link with them to be able to organise volunteering organisations even better.