Connect Twilio for SMS
Connect your own Twilio sender in Settings → SMS. Twilio account charges, sender registration and destination restrictions still apply.
What do you need before connecting Twilio?
An administrator needs a Twilio Account SID, Auth Token and SMS-capable sender number. Follow Twilio’s setup for that number and destination. US local ten-digit business messaging uses A2P 10DLC registration; toll-free numbers have a different verification process. Registration is not guaranteed to finish immediately.
Connect in Stacks
Open Settings → SMS and find Bring your own Twilio. Enter Account SID, Auth Token and the From number in international format, such as +15551234567. Choose Connect Twilio. Keep the Auth Token private. Saving validates the submitted configuration; it is not a successful message-delivery test.
Test the relevant feature
Use a permitted test recipient and inspect the actual Twilio delivery result. Appointment messages, review requests and configured negative-feedback alerts can use this connection. Recipient details, feature settings and applicable consent still matter; connecting a provider does not send every possible alert automatically.
Does Stacks include SMS messages?
Customer SMS requires your own Twilio account and sender on every plan, including Free and AI Pro. You pay Twilio directly. Stacks does not supply a shared sender or an included message allowance. Provider limits and existing permission, consent and approval controls still apply.
Update or disconnect
Use the same page to update credentials or disconnect. Disconnecting your Twilio connection stops customer SMS from this workspace until you reconnect valid credentials. Existing send history is retained.
Official provider instructions
Reviewed against the application on September 11, 2026. Available actions depend on your role and workspace configuration.