The last week and a half has been heavy. I hope you're doing well. Although all of our nervous systems may still be unregulated, I'll try my best to see if we can maintain some semblance of normalcy.
As a startup your goal should be to contact your customers in the most effective way possible. Some do so via email, others do so via notification, but I find that most contact their customers via text message or phone call. It makes sense since text messages have significantly higher open rates than email but when doing so you want to make sure you're being compliant. If not, you'll end up calling me on the phone asking to save you from a multi-million dollar lawsuit.