The property has the right to prevent merchants from hanging banners at the door.

Make outdoor slogans, signboards, banners, exhibition boards, etc. You need to declare outdoor advertisements at the advertising office of the industrial and commercial department before going to the urban management department for approval.

Without these procedures, property may be frozen. When the block is invalid, it can be reported to the urban management for processing.

You shouldn't have gone through any formalities.

Although it is only a banner, it also belongs to the scope of outdoor advertising and needs approval. Unless you hang a public service banner, such as celebrating the 65th anniversary of the founding of the People's Republic of China, nobody cares. However, if you want to celebrate the 65th anniversary of the founding of the People's Republic of China, the audience will get a 5-8 discount. This is an advertisement, and someone must be responsible.