Order Automator

Excellent plugin with a lot of uses cases.

I have used it for several different notifications in my business:
-notify manual dropship vendor when an order is placed so they can fulfill (it uploads tracking info back to Shopify too)
-alert us when someone who has issued a chargeback in the past places another order so we can deal with it
-alert us when someone uses a PO Box so we can ensure the weight of the order is within USPS parameters
-auto cancel high fraud flagged orders

Customer service has been ultra responsive 100% of the time.

Nothing at all bad to say about this plugin, it is WELL worth the small price.