If you top up on credits, the remaining SMS messages will be sent over the next 24 hours. If you do not top up within 24 hours, Halaxy will not attempt to resend the messages.
We recommend using auto top-up to ensure that you never run out of credits.
If you do not want to send out the remaining SMS messages, you should cancel the campaign.
Halaxy will only attempt to resend SMS messages that failed.