When to use this email
Your company made a mistake that affected the customer: a billing error, a bug, a missed commitment
A customer is owed a genuine apology, not a templated "sorry for any inconvenience"
You want to repair the relationship and keep the customer
Tips for making it yours
Apologize in the first sentence. Don't bury it under context
Own it plainly: "the mistake was ours" beats "mistakes were made"
Pair the apology with a concrete fix and a timeline, or it rings hollow
Offer to make it right only if you mean it; an empty gesture reads worse than none
Other versions of this email
The same situation rarely arrives in the same shape twice. These are the two variations worth having ready.
Apologising to everyone at once
The mistake affected many customers — an outage, a billing run, a mistaken send. One honest message beats individual replies you cannot sustain.
Subject
What happened on [date], and what we're doing about it
Hi everyone, On [date] between [times], [what happened, in one plain sentence]. If you were affected, you would have seen [the specific symptom]. What caused it: [the honest cause, without jargon that hides it]. What we've done: [the immediate fix, already shipped]. What we're changing so it doesn't recur: [the structural change, with a date]. If this cost you something we haven't accounted for, reply and tell me — I'd rather hear it than assume we've covered it. [Your name] [Title], [Company]
Apologising for something you can't fully fix
The damage is done and cannot be undone — lost data, a missed deadline that mattered, a commitment you cannot now meet.
Subject
About [what happened]
Hi [first name], I'm sorry about [what happened]. I've looked at whether we can recover [the thing], and we can't — I'd rather tell you that plainly than keep you hoping. What I can do: [the concrete, genuinely useful thing], and [what you are changing so it does not happen again]. I know that doesn't undo it. If there's something specific that would help, tell me and I'll do it if it's within my power. Sincerely, [Your name]
What not to say
- “We apologise for any inconvenience caused.”
- The most recognisable non-apology in customer service. "Any inconvenience" implies you have not checked what actually happened, and "caused" carefully avoids saying by whom.
- “Mistakes were made.”
- Passive voice exists here precisely to avoid an actor. If the mistake was yours, the sentence needs a subject: we got this wrong.
- “We're sorry if you were affected.”
- "If" makes the customer's experience conditional and hands them the job of proving it. You are writing because you know they were affected.
- “This is unacceptable and we take it very seriously.”
- Says nothing a customer can check. Seriousness is demonstrated by the fix and the timeline underneath it, never by asserting it.
If they don't reply
Send once the fix you promised has actually shipped. An apology that names a remedy and then goes quiet is worse than one that promised nothing.
Subject
Following up on [issue] — it's fixed
Hi [first name], I said I'd come back once [the fix] was done. It went out on [date]. [One sentence on what is different now.] Thanks again for flagging it, and for being patient while we sorted it. Best, [Your name]
Questions about apology emails
- How do you write a professional apology email to a customer?
- Apologise in the first sentence, name what went wrong specifically, say what caused it without excusing it, and state the concrete fix with a date. Four short paragraphs is usually the whole email. Length reads as defensiveness — the longer the apology, the more it looks like an explanation of why it was not really your fault.
- Should I offer compensation in an apology email?
- Only if you mean it and it is proportionate. A credit attached to a genuine fix reads as accountability; a credit offered instead of a fix reads as a payoff, and customers reliably spot the difference. If you are unsure, apologise properly first and ask what would actually help.
- What's the difference between an apology and an excuse?
- An apology has you as the subject and a change as the outcome. An excuse has circumstances as the subject and no change at all. The practical test: remove every sentence explaining why it happened. If nothing accountable is left, you wrote an excuse.
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