Is there a way to bulk change the on sale date, possibly on the back end, rather than going through and adjusting all the price maps in season maintenance?
Are you trying to mass update the pubish web start date? If so, season maintenance is the best tool. Easy and quick.
But my concern is I have many different price maps across a show and I just want to change the start date for all the performances regardless of the pricetype.
So you mean you have you want something to not only update the publish web api start date but also update your start date on your price types and modes of sale? I suppose one could write a script for that, but season maintenance can do all of this but you'll have to update each price type and mos separately. Take some time but maybe less time that it would take to write the script.
I don't need to change the publish dates just the pricetype start dates.