We know it can be difficult to start using a new platform. You need to become familiar with the platform's language and features and figure out how to best structure your portal. That's why we decided to define the words below, which are some of the core pillars of Vome:
Category > Opportunity > Shift
Category:
A category is a way to group multiple volunteer opportunities (ex. program, event, location). A category consists of a title, description and cover photo. Volunteers can browse categories on your profile or learn more about them when reading the details of an opportunity.
Opportunity:
Opportunities are generally used to group your volunteers by an activity, role, position or task. Volunteers who are approved for your opportunity can begin reserving spots to shifts.

You will explore more about how opportunities work when going through the
Add Opportunity process. But if you want to dig a bit deeper, you can read:
How do Opportunities work on Vome?
Shift:
A shift consists of a date and time slot on your calendar, which must be associated with a specific opportunity. You can create shifts in bulk for recurring schedules (i.e. every Tuesday at 1-3pm) and control for the maximum number of spots available. If you decide to invite your volunteers to claim their profiles on Vome, they will be able to reserve spots to shifts but only associated with opportunities for which they are approved.

You will explore more about how to customize your schedule during the Add Opportunity process. But feel free to check out this article:
How does Scheduling work on Vome?