A. 1. Check Network: Ensure you have a stable internet connection. If you are on Wi-Fi, try switching to mobile data or vice versa.
2. Correct Information: Double-check that all required fields are filled out correctly during registration. Ensure your email or phone number is valid and not already in use.
3. App Permissions: Go to Settings > DingTalk and ensure that the app has permission to access your contacts and other necessary information.
B. 4. Use Alternative Registration: If you are trying to register with a phone number, consider using an email address instead, or vice versa, to see if that resolves the issue.