The landlord only needs to bring his ID card and the application code in the SMS to apply online within 30 days after receiving the SMS. It is good to sign the bill at any CCB outlet in his city (if you don't receive the text message, you can call the service hotline of CCB to consult the application number), so it doesn't matter if you are near your home in the same city, or you can be near your company.
There is no charge for face-to-face signing (the face-to-face signing procedure is very simple, and the staff of the outlets will not ask more questions, just let you sign and confirm). After the interview is completed, the card will generally be released without special circumstances.
If the landlord has other questions, you can ask.