Understanding Confirmed Opt-In

Who gets this? Shops on all Postscript plans have access to this feature. Learn more about Postscript Plans.

Confirmed opt-in (also known as double opt-in) allows brands to require that subscribers confirm their desire to opt into recurring SMS marketing messages by replying "Y" to an initial text message.

If Postscript does not receive a confirmed opt-in, then the number is not added as a subscriber. By employing confirmed opt-in, you can:

  • Build a subscriber list that is verified and engaged, increasing potential ROI while decreasing sending spend.
  • Create a record of a subscriber’s consent to receive your shop's recurring text messages, allowing you to prove the subscriber knowingly opted-in if you ever need to.
  • Validate phone numbers entered at checkout, in popups, or via forms which prevents someone from falsely opting in with a number that can't receive SMS messages (i.e., a landline).

In this article, we outline how confirmed opt-in works and provide you with some resources you can reference to ensure your SMS program is compliant.

How Confirmed Opt-In Works


After a site visitor enters their phone number in a popup, form, or checkout page, the popup will prompt them to confirm their opt-in. Here's an example:

The subscriber will receive the following message on the mobile device that belongs to the phone number they entered:

Shop Name: Reply Y to subscribe to recurring automated promotional msgs (e.g. cart reminders). Msg & data rates may apply.

Once the subscriber replies Y, they'll receive the below confirmation message:

Shop Name: You're subscribed! Reply STOP to unsubscribe, HELP for help. Msgs powered by Postscript.

From there, subscribers will be ushered into any welcome series you have set up for subscribers who opt-in via popups, forms, or checkout.

Additional Resources


Get Support


Have questions? Please feel free to reach out to our wonderful Support team at support@postscript.io or via live chat. You can also submit a support request here!

Need ongoing channel strategy guidance? Please fill out this form and we'll connect you to one of our certified partners.

Was this article helpful?
0 out of 1 found this helpful