Creating a good dashboard can be tricky, but according to Shoin Wolfe, Founder at Shoka Sonjuku, there are three common mistakes you need to avoid while creating them:

“Three things that make dashboards bad in general. I think the biggest  thing is data overload, poor data visualization in which you can't make actual actions from the data you look at, and lack of customization. A lot of dashboards they exist as dashboards and you're not allowed to customize them.”

This is a snippet from Good Dashboards vs. Bad Dashboards an How I Amplitude session with Shoin Wolfe, where he talks through patterns he's seen across growth teams and what makes some dashboards drive action, and others leave teams in a reactive state.