One change per version
If two versions differ in both hook and image, the winner tells you nothing about either. Change one element and keep the product, offer and landing page fixed, so the result has one cause.
Ad versioning is making several versions of one ad, each changing a single element such as the hook, image, offer, format or language, to learn which one sells and to fit each placement and audience. The ad platforms build it in: a Google responsive search ad holds up to 15 headlines and 4 descriptions, and Meta's text generation writes up to five versions of an ad's primary text and headline. Keep the product, brand and landing page the same in every version.
| What you change | Keep the same | Use it when | Judge it by |
|---|---|---|---|
| Hook or headline | Image, offer and landing page | You don't know which message stops the scroll | Click-through rate |
| Image or scene | Headline, offer and landing page | The message works but the ad gets scrolled past | Click-through rate |
| Offer | Image, headline style and audience | People click but don't buy | Cost per purchase |
| Call to action | Everything else in the ad | Visitors arrive but don't act on the page | Conversion rate |
| Format and aspect ratio | The message and the image content | One ad has to run in feeds, Stories, Reels and display | Results by placement |
| Language | Image, offer and structure | You sell in more than one language | Cost per result in each market |
| Angle for one audience | Product, offer and landing page | Different buyers buy for different reasons | Cost per result in each audience |
If two versions differ in both hook and image, the winner tells you nothing about either. Change one element and keep the product, offer and landing page fixed, so the result has one cause.
Meta reports text variations as one ad, so test images and offers as separate ads in one ad set. Google's ad variations test one text or URL change across many responsive search ads.
Each slot wants its own shape: Meta's aspect ratios view manages square, vertical, portrait and horizontal versions, and Google Display takes landscape and square images. Each market wants its language.
Each version needs enough delivery to show a difference. On a small budget, two or three versions of one element beat ten versions that each get a handful of clicks.
Ad versioning, also called creative versioning, means producing several versions of one ad from the same source: the same product, brand and landing page, with one element changed in each. It does two jobs. The first is testing: run the versions side by side and keep the one with the lowest cost per result. The second is fitting: one message needs a vertical cut for Stories and Reels, a square one for feeds, a landscape one for display, and a version in each language you sell in.
Both platforms accept versions inside one ad, and each reports them differently, which decides where a version belongs.
On Google, a responsive search ad holds up to 15 headlines and 4 descriptions (at least 3 headlines and 2 descriptions), and Google assembles them into combinations, learning over time which work for which searches. To test one change across many existing ads, Google Ads has ad variations, under Experiments: choose responsive search ads in one campaign or all of them, pick find and replace, update text or update URLs, set the share of budget the modified ads get and the dates, then apply the winner as new ads or in place of the old ones. A responsive display ad takes landscape (1200 × 628) and square (1200 × 1200) images, up to five headlines, one long headline and up to five descriptions.
On Meta, text generation in Ads Manager writes up to five versions of an ad's primary text and headline from your original, and Meta shows a variation when it predicts it will improve performance. Reporting stays on the single ad, so you won't see results for each text version. The aspect ratios view manages the square, vertical, portrait and horizontal versions of one creative, and generative AI translations translate primary text and headlines, the voiceover of single video ads and the overlays of single image ads, for a listed set of language pairs.
The rule that follows: put text versions inside one ad and let the platform mix them, but make image and offer versions separate ads in the same ad set or ad group, so each one gets its own results.
This page is informational and reflects our own product and workflow recommendations, not professional or legal advice.