To get your outdoor campaign to be successful, it is important that you follow certain tips:

Creativity is key: thousands of people see the outdoor advertisements every day, what those ads look like depends on the message they transmit arriving and remaining. You have to get attention and get them to remember you.
Study your target well: analyze and choose the areas of the city where your goal can best be achieved. Outdoor advertising allows you to segment.
Manage the times: if for example you use digital panels, control the exposure time, and adapt your message to the moment. Lunchtime will always be more effective if your product, for example, is a restaurant.
Do not place advertising anywhere, choose strategic places. Respect anyone who sees you, complement them, do not be invasive.
Track and evaluate your campaign. Only then you can optimize it if necessary.
In short, outdoor advertising gives online advertising a greater impact and notoriety that allows optimizing investment, by maximizing coverage and advertising impacts. But remember: choose the location well, the target and be creative to get them to remember you.

Outdoor ads can be the perfect complement to the success of your campaign, because the classics never die.