Can You Edit a Customer's Quote in a Case Study? What You Can Fix and What You Can't

Yes, you can edit a customer's quote, lightly. You can cut filler words and false starts, trim with an ellipsis, fix an obvious slip and add a bracketed word for clarity, provided the customer reads the final wording and says yes. You can't make a quote stronger, more specific or more numeric than what the customer said, and you can't blend two customers into one voice. The line is meaning: quotation marks promise the speaker's own words, and the FTC says an endorsement can't be reworded "so as to distort in any way" the endorser's opinion or experience.

This is not legal advice. It covers US federal guidance as of 2026-10-05, and your own release or contract with a customer can be stricter. If you sell into a regulated industry, ask a lawyer.

Do you have to quote a customer word for word?

Not always, and the answer depends on which rulebook you borrow. The two that exist are built for different jobs.

The journalism standard is strict. The Associated Press (AP) puts it in its News Values and Principles: "We do not alter quotations, even to correct grammatical errors or word usage." If a quote is flawed, AP says it may be paraphrased in a way that is completely true to the original, and if the meaning is too murky to paraphrase, it shouldn't be used. Ellipses should be rare and can't change what the speaker meant, and a quote must not be taken out of context. A reporter's rule has to hold up when the person quoted never sees the story before it runs.

Case study writing runs on a looser standard. Casey Hibbard, who says she has written well over a thousand case studies, answers "how much can you edit customer quotes?" in four words: "In short, a little." Her reasoning is that a case study is marketing, not journalism, and the customer reviews and approves the quotes before anything is published. She says that fact alone is why changing a quote is acceptable. She lists what's fair, from removing the ums and ahs to merging sentences said apart and adding a product name so a quote works out of context. What stays off limits is the meaning.

So the two standards disagree about the words and agree about the meaning. The difference is the approval step: a tidy-up the speaker has signed off on is still the speaker's wording. That holds for filler and slips. It doesn't stretch to changing what the speaker meant, and the legal text below doesn't treat a yes as a shield. We couldn't find a published study of how often customers object to an edited quote, so what follows rests on the text of the rules and on practitioners' accounts, not on a survey. For the capture side, start with voice of the customer.

What does the FTC say about editing a customer's words?

The FTC's Endorsement Guides, 16 CFR Part 255, are the agency's own statement of how it judges endorsements, and they say more about quotation marks than most people expect. We read them on the eCFR on 2026-10-05; the text was last amended in 2023. Three sections matter.

Section 255.1(b) is about words. An advertisement "need not present an endorser's message in the exact words of the endorser unless the advertisement represents that it is presenting the endorser's exact words, such as through the use of quotation marks." The next sentence adds that the endorsement "may not be presented out of context or reworded so as to distort in any way the endorser's opinion or experience with the product." So quotation marks are the promise. Drop them and you can paraphrase, but the ban on distortion applies either way. The Guides' own example, a movie ad that excerpts a critic's review (255.0(g)(1)), says an excerpt that alters the review "in a way that does not fairly reflect its substance" is deceptive. Excerpting is normal. Excerpting your way to a different opinion is what makes it deceptive. Section 255.2(d) makes the same point for reviews, naming "editing" among the actions that must not distort what consumers think of a product.

Section 255.1(a) is about claims. Endorsements "must reflect the honest opinions, findings, beliefs, or experience of the endorser," and may not convey any claim "that would be deceptive if made directly by the advertiser." If you couldn't print "40% faster" in your own voice without evidence, you can't print it in your customer's.

Section 255.1(d) is about who carries the risk. An advertiser "may be liable for a deceptive endorsement even when the endorser is not liable." The customer's yes is good practice, and we wouldn't publish without it, but nothing in Part 255 treats it as a defense.

What the Guides don't do is list permitted clean-ups. Read literally, quotation marks promise exact words, so even removing "um" is a judgment call; there is no safe harbor and no word count you may trim to. The table below draws the line where a reader could be misled: at meaning. The Guides speak mostly of consumers; we treat them as the benchmark for B2B testimonials too, and whether they bind a particular ad is a question for a lawyer.

What can you change in a customer quote, and what can't you?

Here is the whole decision in one table. "Without asking" means the customer's normal sign-off on the finished page covers it. "With approval" means you flag the edit: show her the original passage next to your version and get a specific yes. "Never" means don't make this edit yourself, because a yes to wording you wrote isn't proof she meant it.

The test under every row is the same: would she recognize this as what she said, at the strength she said it, in the order she said it? Mess is fine to remove; message isn't. Filler is mess. Hedges ("probably", "about", "I think") are message, because they're how sure she was, and cutting one turns an estimate into a claim. Tidier is fine. Stronger is not. The edit-free option is to pick one continuous passage and quote it exactly as spoken. Every row above is a step away from that.

Hibbard says she merges sentences said apart and that customers usually don't notice or care. Readers can't notice either, which is the argument for marking the join with an ellipsis. And blending two customers is a composite, which anonymous testimonials covers under the FTC rules.

What does a safe edit look like next to an unsafe one?

Here is an invented transcript, not a real customer. She says:

So, um, before we switched, my team was spending, you know, probably six hours a week re-keying invoices by hand. We tried a couple of other things first, a macro and a freelancer, and neither stuck. It's down to maybe one hour now. And, uh, it's a pretty good tool.

• ●Fine without asking: "Before we switched, my team was spending probably six hours a week re-keying invoices by hand. We tried a couple of other things first, a macro and a freelancer, and neither stuck. It's down to maybe one hour now. It's a pretty good tool." The filler is gone. "Probably," "maybe" and "pretty good" stay, because they're how sure she was and how much she liked it.
• ●Fine with approval: "Before we switched, my team was spending probably six hours a week re-keying invoices by hand ... It's down to maybe one hour now." The ellipsis marks the cut, and she sees the original next to it.
• ●Over the line: "We spent six hours a week re-keying invoices. Now it takes one. It's a fantastic tool." Both hedges are gone and "pretty good" became "fantastic".
• ●Also over the line: "We cut invoice entry by 83%." She never said it. A percentage worked out from her two numbers can sit in a headline, where she can check the arithmetic when she approves. It can't sit inside her quotation marks.

Some published advice goes the other way. A 2015 Content Marketing Institute article by case study writer Gretchen Dukowitz tells writers to "edit and embellish" quotes. Her worked example takes a customer's lukewarm "pretty good" and rewrites it as "really good," then adds a sentence crediting ease of use and streamlined operations that the original didn't contain, and notes the customer should approve it. That is the edit to refuse. A customer asked to approve a line you wrote may well say yes to be polite, and a polite yes is agreement with your wording, not proof she said it or feels it.

When the honest quote isn't strong enough, fix the input, not the output. Pick a stronger passage from the same recording, or ask a better question next time (the interview questions that get usable quotes cover that). If the customer won't give a number, write the story without one rather than conjuring one. If you only have a handful of customers to quote, see how to get customer proof with only a handful of customers. And if a quote is too messy to clean, do what AP does: put the point in your own words, without quotation marks, and keep the real quotation for the line where her phrasing carries it.

What if the transcript got a name or acronym wrong?

A recorded interview adds an edit that print interviews never needed. The transcript is software's guess at the audio, and the mistakes that matter most are names and acronyms: "heor" for HEOR, a product name split into two ordinary words, a colleague's surname spelled however it sounded. Fixing those isn't editing your customer. It's correcting the record, and it makes the quote more exact, not less.

Do it from the recording. Replay the passage and fix only what you can hear. When you can't tell, ask her; a wrong guess at a person's or a competitor's name is the one error you can't take back once it's published. And don't "correct" a term she actually said wrong without asking which one she meant, because then you're editing her. Keep the original transcript and a list of every correction, and show her the list when she approves.

What should you send the customer to approve the edited quote?

Send the original and your version side by side, name every change, and ask for a plain yes. Copy this and fill the brackets:

Subject: Your quote for the case study: one quick check

Hi [First name],

Thanks again for the conversation. Below is the quote we'd like to use, next to what you actually said, so you can see every change.

What you said: "[exact words from the transcript]"

What we'd publish: "[the edited quote]"

What changed: [list each one, for example: removed "um" and a false start; cut two sentences, marked with "..."; added the product name in brackets; corrected the spelling of "HEOR"]

If that's how you'd say it, just reply "approved" and we'll use it. If a word is off, tell me what you'd change and I'll send a new version. Nothing goes live without your yes.

[Your name]

Showing the original keeps a small edit from becoming a trust problem later. Listing the changes means she approves the edit, not a general impression. A one-word reply gives you a record; keep it with the approved version and ask again if the quote changes. For the full sign-off workflow, including who else needs to see it, see how case study approval works. The accuracy clause in the case study release template puts permission to fix transcription errors and shorten a quote, meaning unchanged, on paper. And if these are your first quotes, see how a small vertical SaaS company gets its first case studies.

Where StoryVoice fits

StoryVoice is built so the quote problem mostly doesn't arise. Your customer has a five-minute voice conversation with an AI interviewer, and every quote is one continuous passage she actually spoke: never stitched from separate answers, never smoothed or reworded. The only edit allowed inside a quote is correcting the spelling of three names when speech-to-text misheard them: your product, her company and her own name. Any other name the transcript may have garbled is never guessed; StoryVoice picks a different passage, or quotes only the clean part of it. If the interview has no number in it, the case study has none, and if it has no real endorsement, StoryVoice says so instead of writing one.

The customer reviews the case study and approves it before it's published. You and she can both edit it, and the change history names who changed what. A number edited after the interview shows "Changed after the interview," and one typed in from scratch shows "Added by hand," so a figure you changed or added is never mistaken for one she said.

The limits: the history records a change; whether it altered the meaning is a human judgment, yours first and then hers. And StoryVoice doesn't upgrade a lukewarm quote; if the best passage she gave you is "pretty good," that is the passage the page quotes. You can run the interview on yourself first, free.

Sources

• ●Federal Trade Commission, Guides Concerning Use of Endorsements and Testimonials in Advertising, 16 CFR Part 255, sections 255.0, 255.1 and 255.2, read on the eCFR 2026-10-05; latest amendment July 26, 2023.
• ●The Associated Press, News Values and Principles: Telling the Story, "Quotations" section, read 2026-10-05.
• ●Casey Hibbard, How Much Can You Edit Customer Quotes?, Compelling Cases, May 24, 2021.
• ●Gretchen Dukowitz, Case-Study Writing Made Faster, Better, and Less Painful, Content Marketing Institute, May 22, 2015.
• ●Cambridge Dictionary, "sic" and Dictionary.com, "sic", for the FAQ on [sic].

Regulation text, articles and dictionary entries were read directly on 2026-10-05. Not legal advice; US federal guidance only.