When a customer responds to an SMS with an opt-out word (e.g. STOP, BLOCK, CANCEL, STOPALL, UNSUBSCRIBE, QUIT or END) Blueshift will automatically unsubscribe the customer from the SMS channel. Similarly when a customer responds to an SMS with an opt-in word (START, YES, UNSTOP) Blueshift will automatically subscribe the customer to the SMS Channel. Please keep in mind that subscribes and unsubscribes to the SMS channel will be handled at the customer level and cannot be attributed to any template or campaign.
Automatic subscription management for the SMS channel is currently available only for Twilio and Infobip. In order to set this up for Twilio, you will need to set up an incoming message webhook in your Twilio account. For more details, please refer to the Twilio setup document in our help center.
Please note that for automatic subscription management to work properly, customer phone numbers should be in the E.164 standard. You can refer to this document if you want to learn more about acceptable phone number formats.