We have two teams under the same department and two managers Alpha & Bravo (manager Alpha is my manager for team Alpha).
Manager Bravo has asked me to give some feedback for someone's (Charlie) upcoming appraisal in team Bravo. We work closely together and obviously want to say something constructive (I have nothing negative to say).
It should be noted manager Alpha isn’t a huge fan of Charlie. I would like to be in Bravo’s ‘good books’ as it were, so I suspect I need to provide some kind of feedback.
How should I handle this, should I ask my manager (Alpha) regarding this query, is it appropriate?