Hi @pgleeson,

Welcome to the Community! I hope to provide you with some info regarding your current question about SMS Consent editing options and preferences.

For Klaviyo, it is not possible to offer ‘Text STOP to opt out’ with UK Alphanumeric Sender IDs because Sender IDs do not allow for 2-way messaging. The unsubscribe link is required (cannot be toggled off). Additionally, here are some great resources regarding SMS consent & Klaviyo.

Getting Started with SMS Handbook - How to Collect SMS Consent

Hope this helped and please let me know if you have further questions!
Alex

That’s very helpful, thank you. I have a follow-up: The SMS that we’re sending is not actually marketing messages, it’s transactional messages (e.g confirmation codes etc). In that case, GDPR opt-out considerations don’t apply. These are one-off messages triggered individually, rather than mass SMS to an entire list.

Is there any way, for those messages, that we can avoid the unsubscribe linke _and_ the ‘Text STOP’ functionality?

Hi @pgleeson,

So what you are trying to do for that case would be to remove the opt out message. In that case, it has always been best practice to include opt-out language in the initial text message to a contact and to remind contacts of how to opt-out on a regular cadence, at least monthly. I believe starting end of Winter 2020, AT&T announced that all informational and promotional messages must have opt-out language (eg, “Text STOP to opt out”) or messages are subject to aggressive filtering. Because we expect other carriers to follow suit, this is now a requirement in all outbound SMS messages from Klaviyo.

If you would like to utilize short code in your SMS marketing, I would also reach out to support as they are best suited for this case!

Thank you :)

Alex