Abstract: The Early Playbook, Written by Early Mistakes

OpenAI Ads [1] is young enough that most "best practices" content is guesswork. This list isn't — it's distilled from the setup errors, measurement gaps, and feed rejections we've watched Shopify brands hit (and fix) since the self-serve Ads Manager opened. Ten practices, ordered by how expensive they are to skip.

1. Finish Account Setup Before Debugging Anything Else

The "Ads cannot serve until you finish account setup" banner means billing and account logo are incomplete. Campaigns won't deliver regardless of anything else you fix. It's the first thing to check when spend sits at zero — not bids, not creative.

2. Wire Server-Side Conversions Before Your First Dollar

ChatGPT clicks land disproportionately in in-app browsers where client-side pixels underreport. Every conversion the platform never sees is training data lost and CPA overstated. Connect Aimerce [2] to your OpenAI pixel (Pixel ID + API key, one paste) so all seven standard events flow server-side from day one — the algorithm's first impressions of your brand are formed by your first weeks of data.

3. Register Conversion Events and Attach Them to Campaigns

Two-step trap: creating a Conversion Event in Tools → Conversions only registers it. Until you add it in Campaigns → Edit Campaign → conversion events, the campaign neither optimizes for nor reports it. If your dashboard shows clicks but zero conversions, check this before blaming the channel.

4. Treat Your Product Feed as Targeting, Not Plumbing

Catalog placements are chosen by a language model reading your product data. Thin titles and empty descriptions don't just look bad — they remove you from conversations you should have won. Enrich descriptions with use cases, materials, and constraints ("fits 15-inch laptop, airline carry-on compliant") because that's the language shoppers ask questions in.

5. Respect the Feed's Formatting Rules

OpenAI's ingestion silently rejects malformed products even when the SFTP upload succeeds: description must be non-empty, and prices need exactly two decimals (89.00, never 89.0). Aimerce's feed sync normalizes both automatically; if you're hand-rolling feeds, audit for these two first when products go missing.

6. Write Context Hints Like a Brief, Not a Keyword List

Context hints guide semantic matching — they aren't exact-match keywords and don't guarantee placement. "Shoppers comparing mineral vs chemical sunscreen for sensitive skin" outperforms a comma-list of terms, because it describes the conversation, which is what the system actually matches against.

7. Bid Into the Clearing Range

Early advertiser consensus puts workable CPCs around $3–5; bids far below that mostly buy non-delivery, which reads as "the channel doesn't work" when nothing was ever really tested. If budget is tight, run fewer contexts at real bids rather than everything at bids that never clear.

8. Size Tests by Conversions, Not Weeks

A decision-grade test needs conversion volume — as a rule of thumb, 50–100 conversions before judging CPA. At low daily budgets that takes longer than the two weeks most teams allot. Pre-commit to the volume, not the calendar.

9. Capture Identity on the First Click — There Is No Retargeting

OpenAI Ads is contextual-only: no behavioral profiles, no retargeting pools. A visitor who bounces is unreachable on that channel. Make the first visit count — email/SMS capture, and Aimerce's Durable ID so returning visitors are recognized and your other channels can pick up the thread.

10. Judge the Channel on Three Numbers, Not One

Platform-reported ROAS, your own first-party attributed revenue, and incrementality signals (branded search lift, "heard about us from ChatGPT" in post-purchase surveys). ChatGPT influences purchases that never click; last-click alone will systematically undervalue the channel — and overvalue nothing else quite like it.

Conclusion: Boring Fundamentals, New Channel

None of these practices are glamorous — complete setup, honest measurement, rich product data, realistic bids. But on a channel this young, fundamentals are the entire competitive edge, because most advertisers arrive without them. Get the data foundation from Aimerce [2], then let the ten items above keep your budget honest.

References

[1] OpenAI Ads Official Website: https://ads.openai.com/ [2] Aimerce.ai Official Website: https://www.aimerce.ai/