When it comes to creating a successful crowdfunding campaign, entrepreneurs make a number of common mistakes. Luckily, Indiegogo co-founder Slava Rubin has identified some of these missteps so you can be sure to avoid them.

For starters, your mentality and how you approach your crowdfunding campaign can make or break your business idea. Especially the “if you build it, then they will come” mentality, Rubin explains. After posting your campaign, you can’t sit and wait for funding to come in — you’ve got to be proactive. “Once you are done posting your campaign and launching it, you need to keep it fresh and dynamic,” Rubin advises.

Related: Indiegogo’s Founder Shares 4 Tips to Get Your Crowdfunding Campaign Funded

But first, Rubin says, it’s important from the get-go to pinpoint exactly who will be funding your idea and the type of people it will attract, then target them. If people already support your idea before launch, you’ll attract more backers through word of mouth.

Of course, after engaging people, many make the mistake of not continuing to update them and oftentimes “go dark.”

Watch the video above to learn about common crowdfunding mistakes entrepreneurs make from the Indiegogo co-founder himself.

Each week, the new pitch show Entrepreneur Elevator Pitch gives aspiring entrepreneurs one minute to prove that their product or business is the next million-dollar idea. You can watch the episodes on entrepreneur.com, listen to the pitches and support the ideas you think show promise through Indiegogo.