We are selling our shows as unseated then turning off sales 24 hours in advance to hand seat the audiences. We oversold a show the other day as we have hold codes in place but these aren't locking our capacity to web sales. Any advice as to how you are handling your sales when they begin closing in on selling to your set capacity?
It's not perfect/immediate, but I had some luck using the Pulse feature in Analytics to keep tabs on capacity. I created a widget that calculates percent filled using the equation
[Total Ticket Paid/Reserved Count] / ([Total Seat Count])
I then filtered that widget on one performance at a time, setting up a pulse for each one. It was a bit tedious at the beginning of the season to set it up for each and every event, but then it was good to go. The main downside is that you don't get the notification until the next morning so I set my pulse for slightly lower than the actual limit.