We have that feature at our company through an employee review SaaS we use called Lattice. Our #praise channel works the same way and it has definitely been a n

We have that feature at our company through an employee review SaaS we use called Lattice. Our #praise channel works the same way and it has definitely been a nice surprise. It is really nice to be reminded of all the feedback at review time. Maybe other similar employee review systems have a Slack integration you can turn on - it sounds like maybe it is a common feature now.