The phrase "to post the listing" means to put up or publish information or details about something, usually on a website or a platform, in order to advertise it or make it available for others to see or access. Full definition
What is the point of posting this list of faith oriented companies? (religion.blogs.cnn.com)
A broker's or even a salesperson's personal technology strategy can no longer consist of simply posting listings on a website and waiting for hits. (remonline.com)
Some platforms provide you with the opportunity to create and post a listing for free, but many do charge at least a nominal listing fee. (floship.com)