Net Promoter Score is one of the best metrics to measure customer satisfaction and collect valuable and relevant feedback that will help you make changes and improve your product or service.

Some NPS responses might become irrelevant at a certain point in time, and some of them will most likely affect your current NPS score. So can you still rely on those responses or should you dismiss them?

In this article we will help you understand when does an NPS response expire and what are the best practices in dealing with it.