What is the actual difference between SMS submission billing and gateway successful billing?

Among them, the gateway is a conventional transmission channel allowed by operators; However, due to the lack of perfect supervision means, issuing cards leads to the issuance of a lot of illegal, fraudulent and other junk information, so it is a transmission channel strictly prohibited by the state. There are two charging methods: submission charging and successful charging. Among them, submission billing means that users will be charged for sending 10,000 short messages. No matter whether you successfully receive short messages at these 10,000 numbers, users cannot know the specific receiving status of the sent short messages. Billing success means that the user sends 10,000 short messages, and the platform only charges the fee for successfully receiving the short messages from these 10,000 numbers, and does not charge the fee for receiving the failed messages. The specific number receiving status report can be clearly viewed by the user on the platform. Pure hand tour, hope to adopt.