Most startups make up their business processes as they grow. There is value in studying the systems of successful companies. This can give you a big headstart, over trying to figure it out on your own.
Here is a look at the main automated emails that Groove uses. There are some good ideas here.
“We’re always trying out new ways to improve conversions. We’ll tweak copy. Add landing pages. Include more CTAs. And when we’ve figured out what works…what customers respond best to…and what moves conversion rates as high as possible… We automate the hell out of it. Autoresponders are at the center of this entire operation.”