How does the Auto-Purchase feature work?
Similar to the Bulk Message feature but with auto purchase set to on you never have to worry about your messages not being sent out due to insufficient messages. For Example: Lets say you have 200 messages left in your monthly plan and you send out an alert to 500 of your subscribers. We use all 200 messages in your account and then the auto-purchase feature purchases 300 messages at your monthly plans per message rate to send out the remaining text messages and your credit card is billed for those 300.