I have created a Journey that is triggered from my Salesforce Opportunity object.
Part of the Journey should send an SMS which I have created as an "Outbound - Interaction", using the test function on Mobile Connect the SMS does indeed actually work but no SMS is sent when the Contact has reached and and been accepted by the Journey, I know this because there are other actions before and after the SMS action which are complete.
SMS has not been sent, on the MobileConnect overview page the send numbers are still at 0.
Could anyone tell me how I would troubleshoot this to resolve?