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There's a specific kind of dread that comes with a client call you weren't expecting. You see the name on your phone, and before they even say anything, you already know. Something went out wrong. Something got missed. And now you're the one who has to explain it.
Every agency has this call. Not "might have" — has. No matter how good your team is or how tight your processes are, a mistake will eventually reach a client and they will notice. The agencies that survive that moment with the relationship intact are the ones who have a process for how to handle it.
The first move is apology, not explanation. And it matters how it gets delivered. If the lead account person is inclined to get defensive, figure out another person to mea cupla. "Well, you didn't give us all the information" is a sentence that should never reach a client's ears, even if it's technically true.
Set the expectation with your delivery staff ahead of time: if a client flags a mistake, it goes through your escalation path before anyone responds. One voice should respond and that voice should be trained to say some version of "that was on us, we're sorry, we're looking into why it happened, and we'll report back shortly."
Once the apology is out, the next step is figuring out what actually caused it. Say a campaign went out with incorrect information. Was it because the client gave you bad information to begin with? Maybe. But you're still the one responsible for catching it before it went live. Or was it that nobody on your side asked the right question at intake?
This is just part of the job when you are an agency vendor — sometimes you will take the blame for something that isn't strictly your fault. Being a good agency partner to your clients sometimes means taking a few punches. That said, of course, if there was an egregious error on the client's part that they have chosen to unfairly blame you for, you should say something, but generally the best strategy is to take the hit and move forward.
The root cause isn't always your fault. But finding it — accurately, not defensively — is what makes the next step possible.
The fix you go back to the client with is always what you are going to change to avoid the same outcome in the future. If, for example, a campaign brief was missing a question that should've been there, the fix is "we've added that question to the brief, and we're going to ask it every time going forward."
You can hold a client accountable for their part without making the fix about their part. Show them the new process. Show them it's already in place. That's when a mistake stops being a mistake and starts being proof you know how to handle hard conversations.
The last step isn't really a step — it's a posture. Once you've owned it, explained it, and fixed it, you stop talking about it. You don't check in every other day asking how things are going. You bring it up once, at your normal cadence, and ask if the fix actually landed for them. Then you move on.
This is less something you do and more something you project. Your team has to genuinely believe "we know what happened, we know how we fixed it, and it's not happening again." That confidence has to come through in how you show up afterward, not just in what you said in the apology call.
Trust takes a hit the moment a mistake happens. That's unavoidable. But a mistake handled this way — owned quickly, explained honestly, fixed visibly, then left behind — can actually leave you in a stronger position with that client than you were in before. Recovering with authority is how you build the kind of trust that a clean track record alone never gets you.