The Customer Forces Canvas captures why customers do what they do.
In the beginning, we use the CFC to essentially discover how people are currently operating:
We are studying all the ways to find problems so we can introduce our new ways.
Both the Customer Factory and the Customer Forces have a set of stages. But those of the Customer Factory are more metrics driven. They are milestones that your customers go through. They are a great dashboard once you have launched your product or a great forecasting model when you are doing your traction roadmap. (e.g. When we begin to estimate what people will pay us and what those conversion rates are, that's when we use the Customer Factory).
So for every arrow of the Customer Factory there is a Customer Forces Canvas.
At each stage there are customer forces at play. That's why beyond the problem discovery and initial launch you are still gonna be using the CFC but for a different purpose.
Once people start using your product, there are going to be other triggering events (not the same kind of switching triggering events you encounter during demand generation, but just usage-based triggering events. What's triggering them to use your product).
As they are going to use your product, they are going to have some problems. There is no such thing as a perfect solution, every solution has problems, and so the opportunity for competitors is to switch your customer away from you.
When people buy your product and start using it on a regular basis, they'll keep doing it unless you give them a reason to live.