Question
Twilio SMS - calling webhook without trigger
I was able to get a Twilio SMS webhook to work with a trigger (someone fills out form to opt in to SMS alerts, sent SMS confirmation) but I'm wondering if it's possible to then send those people that opted in additional SMSs without a trigger? I.e. smart list of people that have previously opted in, flow to call my webhook with new message, then run batch now.
Any ideas?