How to send double 12 short messages in groups?

Nowadays, enterprises, e-commerce companies and large supermarkets will choose to push preferential activities to members on holidays.

It should be noted that if it is only a personal push, you can edit and send it with your own mobile phone number.

However, if it is a corporate behavior, it is best to find a short message sending platform to do it, and it will not be intercepted for no reason.