I. Application for Mini Program Payment
The mini program can either apply for a new WeChat payment merchant number or bind it to an existing WeChat payment merchant number
First, log in to the background of the applet, find “WeChat Payment” on the left sidebar, and click “Open” in “Payment Application”
Next, you will come to the page for choosing the activation method. You can either apply for a new WeChat payment merchant account or bind an existing WeChat payment merchant account.
(1) If you do not have a WeChat payment merchant number, then apply for a new one. The application takes about 1-5 days. The main process is: fill in the application information-after WeChat payment review-check the account opening email-verify the payment amount-log in to the merchant platform and sign the agreement.
(2) Developers with existing merchant accounts can quickly activate WeChat payment by binding existing WeChat payment merchant accounts. Currently, only new types of merchant accounts with the same binding subject and complete all account opening processes are supported. Other types are not supported.
Fill in the merchant number and login password, submit the verification and bind successfully
Configuration of applet payment in the background
(1) If you choose to “bind an existing merchant number to open WeChat payment” and the bound merchant number subject is consistent with your authorized public number subject, you can directly copy the settings set in the mall function settings-payment method Website WeChat payment information to mini program payment
(2) If the merchant number paid by the applet is inconsistent with the authorized public number subject, you need to log in to the merchant platform to confirm
① Login to WeChat payment merchant platform
② Find WeChat payment merchant number, search path: WeChat payment merchant platform-product center-development configuration
③ Configure payment key
Find path: WeChat Pay Merchant Platform-Account Center-API Security
Click "Set Key" (requires installation of the operation certificate first), set a 32-character key, and fill it into our management background at the same time (note: do not easily modify the payment key, remember to return to the background to update after modification)