The product is to invoke BOTIM & PayBy built-in checkout. The merchant has an mobile website, when the customer opens the webpage in BOTIM through a message, the built-in checkout will be invoked to complete the order and purchase process.
**Step 1**: Use PayBy app of test environment to scan the code above. Find the apk and account [here](/demos/testaccount).
Step 2: You will be redirected to built-in checkout. Enter the password and complete the payment. If your customer opens your wibsite in BOTIM app and pay, it's the same payment process.