Adding SMS Unsubscribes from Twilio to Marketo using Zapier
We've set up SMS messaging through Twilio. We'd like to update records in Marketo if they've opted out of our SMS messages.
Trying to do this through Zapier. If an SMS message to our Twilio number matches "STOP," then update the Marketo record of the "from" mobile number as unsubscribed from SMS (custom field).
Unfortunately, it looks like Zapier needs an email address to update a Marketo record or to add the record to a list. We likely won't have email addresses for these records.
Any workarounds to this? Or another way to push SMS opt outs from Twilio into Marketo?
I understand we can get a programmer to develop a solution for us but wanted to exhaust this avenue first. The volume of opt-outs won't be that great.
Thanks.