When Taboola rejects an ad, the item comes back with a reason code and a short note from the reviewer. Read together, they tell you more than the policy page does. We pulled those notes for 100 ads across two campaigns on one US account (a health product for older adults): 41 were rejected. This guide shows what the reviewers wrote, what kept repeating, and what we changed. We manage Taboola accounts for DTC health and wellness brands every day as an official Taboola partner.
In short
- 41 of 100 ads were rejected (41%): 11 of 50 on the first campaign (22%) and 30 of 50 on the second (60%). 31 of the 41 (76%) were about the thumbnail and 10 (24%) about the title.
- The biggest single cause was text inside an AI-made thumbnail: misspelled, garbled or nonsensical words. That was 23 of the 41 rejections (56%).
- Reason codes and reviewer notes do not always match. Fix what the note describes, not what the label says.
- Rejections cluster by image. On the second campaign, 4 of 10 images were rejected on every headline they were paired with.
- A landing page can sink every ad that points to it, whatever the image looks like.
What we looked at
The data comes from the Realize item list of two US campaigns we manage, read on 23 October 2026. Each campaign held 50 ads: 10 images combined with 5 headlines. The account is anonymised. This is a snapshot of one account and one product type, so treat it as what we saw, not as Taboola's rulebook. Some of these ads may have been edited and resubmitted since. For the earlier list of rejections (blood, drug names, doctors, "as seen on") read our native advertising examples.
The six reason codes, ranked
| Reason code | Ads | What the reviewer wrote | What we do now |
|---|---|---|---|
| Grammar or language issues (thumbnail) | 14 (34%) | Spelling errors and nonsensical text in the image | No AI-generated words in the image; add text in an editor |
| Poor editing or cropping (thumbnail) | 9 (22%) | Corrupted text, visual artifacts, distorted features or diagrams | Zoom to 100% before upload; drop any image with artifacts |
| Informal or colloquial title | 10 (24%) | "Sensationalist language", in three notes the word "shocking" | Plain, specific wording; no hype words |
| Unrealistic finance claims (thumbnail) | 4 (10%) | Multipliers and percentages such as "5x the price" or "93% down" | No savings numbers inside the image |
| Highlighting or fluoro colours (thumbnail) | 2 (5%) | High-impact red graphics and arrows on price drops | Keep the image bright and clear, drop the arrows |
| Unverified brand endorsement (thumbnail) | 2 (5%) | A well-known third-party logo on a mug, plus spelling errors | No third-party logos, ever |
Total: 41 rejections out of 100 ads. Percentages in the table are shares of the 41 rejections.
1. Check the text inside the image first
If an image generator writes words for you, assume they are wrong until you have read them at full size. The reviewers quoted misspellings directly, and several notes simply say "garbled, nonsensical text likely caused by an AI generation error". 23 of the 41 rejections (56%) were this one problem, split across two different codes. In the second campaign, 5 of the 10 images carried this kind of text error, and 4 of them had every ad rejected.
The fix is boring and works: generate the picture without words, add any text in a design editor, and read it out loud before upload. Better still, let the headline carry the words and keep the image to one clear subject. We covered the wider image rules in the native advertising examples guide.
2. Price claims, red arrows and logos
A price comparison is the angle of the ad, and it is also what got flagged. Four thumbnails were rejected as "unrealistic finance claims" because the image itself showed a multiplier or a percentage drop, and the reviewer treated it as an unqualified savings promise. Two more were rejected for loud red graphics with arrows pointing at a price drop. Bright, clear images pass all the time on our accounts; the combination of red, arrows and a number is what was flagged.
Two ads were rejected for a famous beverage logo printed on a mug in an AI image. Earlier in October, on the same account, our Taboola account manager also told us that brand logos cannot be shown. If a logo appears in the picture, you are claiming an association you probably cannot document.
3. Titles: sensationalist wording
10 of the 41 rejections (24%) were titles. The code says "informal or colloquial", but the notes describe sensationalism: "to grab attention", "emotionally charged", and in three notes the word "shocking". Two notes also objected to the emotional image of a distressed person next to a cost headline. On another batch of title rejections, the feedback relayed by our Taboola account manager pointed to the word "solution". That feedback came back the same working day.
We rewrote "shocking" into "surprising". The reworded headline is approved on 8 of 10 ads in the first campaign. Two are still rejected, so do not read this as a guarantee. What we do now is simple: a concrete claim you can show on the page, no intensity words, no emotional close-up next to a money headline.
4. Landing pages reject ads too
The ad can be clean and still fail because of the page behind it. On a supplement account in June 2026, five ads stayed rejected because the landing page used the word "preventing". Taboola's note asked for more qualified wording such as "manage", "help" or "support". On the same account, three campaigns sharing one landing page had all their ads rejected, and our read was that the page was the cause, not the images. If every ad that points to one URL is rejected, look at the page before the image.
A missing health disclaimer is the other landing page problem we see. On a Canadian account in September 2026, two landing pages were rejected, and the usual fix is the standard disclaimer.
How to read a rejection
- Read the note, not the label. A title coded "informal" came with a note about sensationalism. The same garbled-text image was coded "grammar" on some ads and "poor editing" on others.
- Group by image and by title. If the same image fails on every headline, it is the image. If the same headline fails on every image, it is the headline. Fixing one image once clears many ads at once.
- Look for words, not themes. Single words ("shocking", "solution", "preventing") decided several outcomes.
- Do not trust a campaign status. A campaign can be approved while its ads are still rejected, and an approved ad can be pulled later.
What to do when ads are rejected
- Edit the rejected item and resubmit it. Do not recreate it. A new thumbnail or a new title puts it back into review.
- Ask your Taboola contact for the reviewer feedback. On the title case above, we flagged the problem in the morning and had the feedback by mid-afternoon. In October, a single ticket got rejected ads across several campaigns on one account re-reviewed. An account manager can ask, but cannot guarantee an approval.
- Keep 6 or 7 approved ads as a backup and add variants on top, so the campaign keeps running while new ads are reviewed.
- Reuse approved ads without a new review. Duplicate the campaign and keep the existing creatives through the duplicate option. Building a new campaign and re-adding old items triggers a new check.
- Test images in small batches. The second campaign lost 60% of its ads because several images shared the same text error. Checking ten images by hand takes minutes.
If your bigger problem is clicks that never convert, not rejections, read our guide on bot and junk traffic on Taboola.
Frequently asked questions
Why was my Taboola ad rejected?
Check the reason code and the reviewer note on the item. In the 100 ads we reviewed, the most common causes were misspelled or garbled text inside the thumbnail, sensationalist wording in the title, savings numbers in the image, and logos from other brands.
How long does Taboola take to review an ad?
It varies. In the title case described above, we raised the problem in the morning and had the reviewer feedback by mid-afternoon the same day. That is what we observed on our accounts, not a promise from Taboola.
Can I edit a rejected Taboola ad?
Yes. On our accounts, editing the thumbnail or the title of a rejected item sends it back to review, so there is no need to create a new one.
Why is my campaign approved but my ads are rejected?
Campaign approval and ad approval are separate checks. We have seen campaigns approved with every ad still rejected. Ask your Taboola contact to re-check the ads, and read the note on each item.
Can an AI image get my ad rejected?
Yes. AI images are fine when they are clean. They fail when the text in the picture is misspelled or garbled, when hands and faces look distorted, or when they carry a logo you have no right to use.
Want help getting ads approved?
We are a media team of two brothers and an official Taboola partner. We check every rejection note on the DTC accounts we manage, and we work with our Taboola account manager when ads need a second look. Book a free strategy call and we will go through your rejected ads together, or see how our Taboola partner agency works.
Claudio Dell'Ariccia
Co-founder & Media Buyer
Claudio Dell'Ariccia is co-founder of Digital Brothers. He runs native ad campaigns on Taboola, Outbrain and MGID every day for e-commerce, lead gen and affiliate brands worldwide.
About Digital Brothers →