Typically messages will fail to send because the mobile number of the intended recipient(s) is invalid.
- The recommended format for mobile numbers is to include the international prefix (dial code) and no non-numerical characters such as brackets:
- Correct: +61412345678
- Incorrect: (0061) 0412 345 678
- If your numbers are all saved in the correct format, then there's a chance that the number itself is invalid/not in use, or that the recipient has blocked the sender ID.
- There's also the possibility that the carrier themselves are experiencing issues that could impact your messages being sent successfully.
If you're still unsure as to why your messages are failing, you can submit a request to our support team for assistance.