helder
2
What are the logs saying? Are they sending the message but not being delivered?!
If so, you might want to look into A2P regulations, as your messages might not get delivered due to compliance. If your sender account that you’re sending is registered and approved (means that you submitted brand and company info - EIN or DUNS), then the issue might me somewhere else.
Any unregistered traffic since August 2023 isn’t being sent but being charged. This is a whole rabbit hole.