Saying the difficult thing at work
Most feedback fails before a word is chosen, because it is delivered in the wrong place, months late, wrapped in two compliments.
Distributed teams make this harder in a specific way: you cannot read a face, and the other person cannot read yours. Everything below is about reducing the number of things that have to be guessed.
The channel decides how it lands
Correcting someone where colleagues can read it turns a small note into a public event. Whatever you wrote, what they will remember is that eleven people saw it, and every future message from you carries that.
Criticism goes to one person, directly. Praise goes where others can see it — that asymmetry is the whole rule, and it is the one most often reversed by accident, because praise feels awkward to say publicly and correction feels efficient to say in a thread.
Soon, but not in the same minute
Immediately after something goes wrong, both of you are still holding the event rather than the pattern, and the conversation becomes about that one incident. A week later it has become an accusation from nowhere, and the person has to reconstruct the day to answer.
The next day, or the same week, is right. And never save it for a formal review — a review that contains a surprise is a failure of everything that happened before it.
Say the thing, then stop talking
The compliment sandwich exists to make the speaker comfortable, and it works: the speaker leaves relieved and the listener leaves having heard two compliments. The message is the part that got removed.
Be concrete about the behaviour and its effect, once. "The client got the file two days after we promised, and they emailed me to ask" is workable. "You need to be more reliable" is not — nobody can act on an adjective. Then leave silence rather than filling it; the useful part of the conversation happens after you stop.
When it is aimed at you
The reflex is to explain, and the explanation is usually true, and it still ends the conversation. Once you have justified something, no more of it is coming, this time or ever.
Ask one question instead: what would you have done differently? It buys you the specific version of a vague complaint, and it signals that more is welcome. You can decide later whether they were right — that decision does not have to be made in the room.
Questions people actually ask
Where should critical feedback be given?
To one person, directly. Correcting someone where colleagues can read it turns a small note into a public event, and what they remember is that eleven people saw it. Praise is the opposite: give it where others can see.
How soon after should I say something?
The next day, or the same week. Immediately, and you are both holding the incident rather than the pattern; a week later it arrives as an accusation from nowhere. Never save it for a formal review.
What should I do when receiving feedback?
Ask what they would have done differently instead of explaining. An explanation is usually true and still ends the conversation — once you justify something, no more feedback is coming.