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Custom stack - OpenAI Ads

Send every Custom stack event to OpenAI Ads, server-side

Q: How do I check that Custom stack events are reaching OpenAI Ads?

Open OpenAI Ads › Measurement › Conversions. Server-reported conversions list the parameters that arrived with them.

Q: Will a purchase be counted twice?

No. Browser and server copies of the same purchase collapse on event ID, so nothing is counted twice.

Each event is resolved to a person against a 750M+ device graph before it reaches OpenAI Ads, with restored click IDs, deduplicated conversions and delivery you can audit.

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US device IDs in the graph: 750M+
Match rate on events: 90%+
Identity window, per customer: Lifetime
Most brands are live: <20 min

How it flows

How a Custom stack event reaches OpenAI Ads. Captured on the server, resolved to a person, then sent.

01 Capture

Captured from Custom stack

Not on the list? Send events to Upstack from any stack over webhook or direct post, with the same schema and the same resolution.

See the Custom stack integration

Custom stackWhat it sends

event_namewhatever you choose to call it
user identifiersany of email, phone, external ID
value / currencyif the event carries revenue
custom propertiesany attribute in your own schema

02 Understand

Resolved to one person before it leaves

Every Custom stack event is matched against a 750M+ device graph, so a phone browse and a desktop checkout resolve to one customer rather than two strangers.

How resolution works

Resolved before it is sent

IdentityMatched against a 750M+ device graph, so a phone browse and a desktop checkout resolve to one customer.
customer_typeNew or returning, resolved before send.
DeduplicationBrowser and server copies of the same purchase collapse on event ID, so nothing is counted twice.
Bot and fraud filteringAutomated traffic never reaches the model, because what you keep out of the training set matters as much as what goes in.

Ad platforms accept almost anything and tell you very little. These controls exist so you can see what was sent and what was accepted, rather than inferring it from a reporting gap.

03 Activate

Delivered to OpenAI Ads

Forward identity-resolved conversions to OpenAI Ads, so a channel with no established attribution history starts with clean server-side measurement.

See the OpenAI Ads integration

OpenAI AdsWhat it receives

hashed email / phoneidentity matching on arrival
click / session referencecredit the assistant interaction
event_iddedupe against any browser-side report
value / currencyvalue-based optimization
external_idstable person across sessions

The catch

The freedom to name your own events is also the risk: an ad platform expects specific event names and parameter shapes, and anything outside that is accepted and ignored.

Mapping happens before send, not in the platform.

Where to check in OpenAI AdsDelivery you can audit

OpenAI Ads Measurement Conversions

Server-reported conversions list the parameters that arrived with them.

What changes

What changes when Custom stack feeds OpenAI Ads. Two gains on the OpenAI Ads side, two on the Custom stack side.

OpenAI Ads

Server-side delivery

Events reach OpenAI Ads through its server API rather than the browser, so ad blockers and ITP don’t cost you conversions.

OpenAI Ads

Identity-resolved events

Events sent to OpenAI Ads carry the resolved customer whenever Upstack can identify one, matched against a 750M+ device graph.

Custom stack

Any stack, any framework

Headless, custom checkout, native app or a platform we haven’t listed: if it can make an HTTP request, it can send to Upstack.

Custom stack

The same event schema

Custom events are resolved, filtered and forwarded exactly like a Shopify order.

Setup

Post directly from your backend so nothing depends on the browser.

Connect Custom stack once and every destination, OpenAI Ads included, is forwarded the same resolved events.

Upstack dashboardExample

Custom stack Data source Connected

OpenAI Ads Destination Healthy

Read the full OpenAI Ads setup guide

01

Connect Custom stack

Not on the list? Send events to Upstack from any stack over webhook or direct post, with the same schema and the same resolution.
02

Add the OpenAI Ads destination

Under Destinations, add OpenAI Ads. Every resolved Custom stack event is then forwarded to it.
03

Check delivery to OpenAI Ads

Every conversion is inspectable from the moment it fires to the moment the platform confirms it.