ERROR: 30004
Possible Causes
The destination number you are trying to reach is blocked from receiving this message.
The device you are trying to reach does not have sufficient signal.
The device cannot receive SMS (for example, the phone number belongs to a landline).
The destination number is on India's national Do Not Call registry.
There is an issue with the mobile carrier.
You have sent a message from a US/CA Toll-free number to an end user handset that has previously responded with "STOP" or another opt-out keyword.
Possible Solutions
"Undelivered" messages sent to India
Error 30004 results on undelivered messages sent to India could be due to the destination number being listed on the national Do Not Call (DNC) registry.
Luubu support team can help investigate what went wrong with delivering your message. Please collect 3 or more message examples in your SMS logs from the last 24 hours that were flagged with Error 30004, and open a support request.