Let's imagine that your product looks amazing. Everything's working smoothly, the colors are awesome, but the revenue stream is low. What could be the problem? >> There could be a number of roadblocks that prevent users from spending money in your app. A roadblock could be a design issue that discourage users, for example, a complex registration form, or a user exceptions on particular devices. You can use the reports we've talked about in the previous lessons to help you identify the road block, and more effectively monetize your users. Let's take a look at a few examples that will help us investigate and find the reasons.