Hello,

Before the development of "WeChat Mini Program", you must complete and register for certification. If an individual or small company wants to develop a WeChat app, you can also find a WeChat-certified third-party developer, such as Win Mobile, Genuine Technology, etc.

1. WeChat mini program registration

On the homepage of the WeChat public platform official website, follow the prompts and click the "Register Now" button in the upper right corner. There are 12 steps in it. Just submit as required. That's it.

2. Mini programs applying for WeChat authentication

Government, media, and other organization-type accounts must verify the identity of the subject through WeChat authentication. For enterprise-type accounts, you can decide whether to apply for WeChat certification as needed. Authenticated accounts can use WeChat payment, WeChat cards and coupons and other advanced permissions.

Authentication entrance: Log in to the mini program—Settings—Basic settings—WeChat authentication—Details

3. Mini program applies for WeChat payment

Authenticated mini programs can Apply for WeChat payment.

4. The mini program is bound to the WeChat open platform account

After the mini program is bound to the WeChat open platform account, it can be connected with other mobile applications, website applications and public accounts under the account. The UnionID mechanism is used to meet the need to unify user accounts between multiple applications and official accounts.

UnionID mechanism description: If a developer has multiple mobile applications, website applications, and public accounts (including mini programs), UnionID can be used to distinguish the uniqueness of users, because as long as they are on the same WeChat open platform For mobile applications, website applications and public accounts (including mini programs) under the account, the user's unionid is unique. In other words, for the same user, the UnionID is the same for different applications under the same WeChat open platform. The user's UnionID can be obtained by calling the "Get User Information" interface.

5. To learn about the “Obtain User Information” interface, please view the Development Documentation—API—Open Interface—User Information.

Instructions for binding mini program: Log in to WeChat Open Platform, - Management Center - Public Account - Bind Public Account

Note: WeChat Open Platform account must complete developer qualification certification. Mini programs can be bound.