Resolved: I can’t send bulk sms to different phone numbers in Twilio API

Question:

I have tried to send bulk sms in Twillio for a while.
Which I done things; Firstly, I created a service in Messaging Services page. And then, I created a notify services with message service sid in Notify Services page.
After those, I requested with Postman following cURL code.
How to do this? Do I definitely have to create binding before I send bulk sms?
Response:

Best Answer:

Twilio developer evangelist here.
Have you seen this StackOverflow question and answers?
This Postman setup works: Postman for bulk SMS
Under Body > Form-data, enter a ToBinding key value pair for each number. In the key field, enter “ToBinding” and in the value field, enter the following syntax for a phone number:

If you have better answer, please add a comment about this, thank you!

Source: Stackoverflow.com