[AWS-SDK] Not receiving any transactional SMS

Hello, I'm using the AWS-SDK in NodeJs to send Transactionnal SMS to users

I'm using the '2010-03-31' api version and with the method setSMSAttributes, I'm setting the DefaultSMSType and DefaultSenderID.
I then publish a SMS with a Message and PhoneNumber

I get the RequestId of the SMS but I'm not receiving the SMS
My SNS SMS Dashboard describes a flat activity at 0 outbound messages.

Is there something I've done wrong ?

Edited by: thomasdupre on Jan 16, 2019 6:48 AM