1. Download the "Business Connection Application" in the App Store.

2. Register now and fill in your personal information as prompted.

3. Real-name registration, input certificate information for ID card and face recognition authentication.

4. Legal person login.

5. Click on the home page to start a business.

6. Click on the signature to-do list.

7. Click on the company information.

8. Click on the signature.

9. Click Sign to open the signed version and submit it.

10. Submit the signature after generating it. Style score is the signing method of general legal person login in business.