Hello @DSC,

Thanks for being a Klaviyo Community Member!

SMS being skipped with the reason of Unable to Send SMS typically indicates Klaviyo ran into an unexpected error during send time as detailed in the Understand the Skipped Reason for a Flow Message Help Center Article. From my experience, another reason why this can occur is if Klaviyo or these carriers has detected content within your SMS message that violates SHAFT regulations. You can learn more about what is considered a violation of these regulations from SMS and MMS Prohibited Content and SMS Filtering by Wireless Carriers Help Center Articles.

An example of this would be if your SMS message contained marketing material advertising CBD products. When attempting to send this message, because Klaviyo is aware that this SMS would be blocked by the carriers, Klaviyo will actually prevent the SMS from being sent out as to not adversely impact your SMS deliverability from being blocked by the carriers. 

I hope this helps!

David

Hi David, 

But I also try to run some test (using myself as 1 sent recipient),  no words or content mentioning CBD products..still it seems like it’s not sending. 

Is there a tech support line I can contact at all?

Thanks for your response. 

Hey @DSC,

For more direct assistance, I would suggest reaching out to Klaviyo support to have a closer look at your account and investigate this issue further. 

Let us know how this goes and what the solution was to share with other Community Members who may be running into the same issue you have. 

Thanks for being a member of the Klaviyo Community!

David