r/OpenAIAdvertising

Disclosure: I run PromptMarketing, the agency that set this up. The client is anonymous, a European parts and accessories retailer with three webshops selling in the Netherlands, Germany, Austria and France.

Numbers, 1 to 25 September:

• Impressions 94,900
• Clicks 2,287
• CTR 2.41 percent
• CPC EUR 0.44
• CPM EUR 10.57
• Spend EUR 1,003
• Attributed order value EUR 3,006, so 3.0x on the dashboard's own attribution

Setup:

1. Product feeds through Channable over SFTP, the same feed the shops use for Google Shopping, with titles, descriptions and prices mapped.
2. Product selection from revenue data and bestsellers, filtered by category, brand and product ID. Seven groups ran on fixed product IDs.
3. Three product campaigns and two text campaigns, named the way the Google Ads account is named so the client team recognised them.
4. Context hints written as plain language (model, connection, use case) instead of keyword lists.
5. OpenAI pixel plus the Conversions API with a shared event_id for deduplication. Separate goals for orders and for product views, so a view never counts as a sale.
6. Ten more product groups added in the last week.

What we did not expect:

• Product ads and text ads cost the same per click, EUR 0.44 against EUR 0.46, with different jobs.
• CTR by country ran 1.91 to 2.56 percent and every market stayed under EUR 0.65 per click. France and the Netherlands were cheapest at about EUR 0.43.
• 96 percent of clicks came from mobile. If your landing pages are built desktop-first, fix that before you spend.
• The feed is the ad copy. Every improvement we made in the feed showed up in CTR within days.

Caveats:

• The order value is OpenAI's number, 30 days post-click and 1 day post-view. It has not been reconciled yet against the webshops' own orders, returns or margin. That reconciliation is the next step and I will post the result, whichever way it goes.
• 25 days with a phased rollout, so this is launch performance, not a baseline.
• Conversions arrive 24 to 48 hours late, so daily reads mislead.

Happy to answer setup questions. The full write-up with the per-country table is on our site. I will put the link in a comment.