How do we test MVP demand for integrated product?

[spremraj]

Some fields such as Human Resource is moving towards integration and value added features on top of it.

[seekingcharlie]

You could try sending an email (requires an active base) proposing the new features/product of your MVP & see who replies.

It costs, but you could also set up a landing page & an Adwords campaign for relevant, but very targeted keywords, and see how it performs.