How can I create an Order Form?

Only need to enter the order number and telephone number, you can query the current order simple information

how to do?

I'm not sure I understood what the end goal is. If all you need to do is ask your respondents for an order number and a telephone number, feel free to add a Short Text Entry (textbox) Field for the order number, and a Phone Field for the phone number.

There's no way to track orders per se since what you're building in JotForm is an online form. Perhaps what you're asking is how to build an order form where users/respondents can pick a product/subscription, then you can charge them accordingly.

If that's the case, I strongly recommend the guides I'm linking below to get started on building an Order Form.

Related guides:

Order-Form-Basics

Order-Form-Types

Setting-Up-Your-First-Order-Form