Hi Deepak,
1. NPS: These are very generic overall sentiment and feedback channel. In my roles, we have sent them out at the 3- and 9- month stages of our customers' tenure for strategic reasons.
2. immediately after key events like QBRs, Kick-offs, Go-Lives, etc.: These should have their own feedback surveys since they pertain, or are at least timed, with certain events.
Thanks,
Jeff
Jeff Heckler
MarketSource
jheckler@marketsource.com