Hi @BradSCJB,
Welcome to the Community! Glad to see you want to incorporate SMS in your brand’s marketing strategy.
At this time, Facebook Lead Ads do not collect SMS consent and pass it into Klaviyo. For this reason we do not add a Klaviyo Consent profile property to profiles that are synced through a Facebook Lead Ad, but there are other ways to affirm their SMS consent.
One workaround option would be to trigger a Flow using the Filled Out Lead Ad metric where you can use a Click to Text Banner or link to a Subscribe page in the flow email to prompt your Facebook Leads to signup for SMS.
With this new workaround, the workflow would be as follows: they fill out a Lead Ad, receive an email, and then text to join at which point their SMS consent would be confirmed and you can send them SMS messages in the future or add them to a SMS Welcome Flow that is triggered by the SMS consent metric.
Additionally, I suggest Back-Populating the Flow to include those who had already filled out the Lead Ad and given their SMS consent. This will ensure they receive an email from this new flow so their consent can be recorded.
Finally, instead of creating this Flow, your other two options would be to manually upload a CSV of SMS consent to these profiles every so often or use Klaviyo's v2 List API to collect SMS consent Klaviyo's v2 List API to collect SMS consent. However, we recommend that you be familiar with the List V2 API before you choose the API option and would only do so if you feel comfortable custom coding or have access to a developer.
Thanks for being a part of the Community!
-Taylor