I want to send a batch of notification messages, but I just don't know how to edit the content. What are the requirements?

Generally, it is 106 SMS sending batch. The notification message format of 106 is: content+signature. General signature can be company name or product name, 2-8 characters. For example, hello, the advanced course of maintenance electrician you applied for has a class at 7: 30 tonight. Students who have not paid all the information and tuition fees must submit them at the front desk tonight. Thank you! Tel: * * * School, I hope it will help you.