Yes. When you setup your Marketo webhook on the Platform, we can configure to either send immediately when your webhook is triggered, at some specific time interval, or when a minimum quantity is reached. 

The minimum quantity option can help save on postage rates by taking advantage of presort mail. There are a few considerations to this in terms of price and speed of delivery so be sure to discuss with your Account Manager to make sure you are set up with the optimal delivery time.