Piecemeal MVPs are great for testing an automated process quickly and easily. They allow you to test and validate tech flows before investing time and effort in building it yourself.

Sometimes building your MVP to look and feel like your final product with technology is the best means of testing your hypothesis. Using existing solutions also allows you to use their back end tools to measure some aspects of the process which can help you inform your own build.

If This Then That, Mailchimp, Google Tools , any website builder