For each Event, the maximum number of tickets (for total of tickets types or per Event) can be set, if required.
Two quantities can be set in the general Event details:
per Ticket Type
This indicates that the maximum number of tickets available is dependent on the ticket type (e.g. Member, Non-Member, Child etc).
per Event (or Venue)
When the Venue Limit is selected, a maximum number of tickets (of all types) can be set.
The number of tickets sold/allocated can be managed further in the Ticket Details.
If the Tickets per Event is used, then the purchase can be further managed by, if required, limiting the number of tickets obtained by either Order.