What are the procedures for hanging a sales hotline banner outside the building?

Generally, you need to apply to the Urban Management Bureau. The organizational settings of each city are different. I suggest you ask the community management committee first.

Hang banners outside stores are outdoor advertising and must be reviewed and approved by the advertising department of the Industry and Commerce Bureau before they can be hung. Otherwise, it is illegal.

Hanging banners outside stores will hinder the appearance of the city. They must obey the management of the local urban management department and hang them in accordance with local unified regulations.

Otherwise, the urban management department will deal with you. Temporary urban road occupation fees are charged for setting up outdoor advertisements, neon signs, commercial slogans, etc. Commercial slogans (banners) are 30 yuan each (public service advertisements are not charged).

Article 18 of the Regulations on the Registration and Management of Outdoor Advertisements. Units and individuals that violate the provisions of Articles 5 and 11 and publish outdoor advertisements without registration shall be subject to The industrial and commercial administration authorities shall confiscate illegal gains and impose a fine of not more than 30,000 yuan, and re-registration procedures shall be completed within a time limit. Those who fail to complete the registration formalities within the time limit will be ordered to stop publishing.