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Send events from your Stripe-billed app to Reddit

Q: Will my events be counted twice if I run both the Pixel and CAPI?

No. Upstack sends a shared conversion_id on every server-side event, and Reddit deduplicates against the matching browser Pixel event. As long as the Pixel ID in Upstack matches the Pixel ID firing in your storefront, deduplication is automatic.

Q: Which events does Reddit receive?

PageView as PageVisit, ViewContent as ViewContent, AddToCart as AddToCart, InitiateCheckout as InitiateCheckout (custom event server-side) and Purchase as Purchase.

Q: Which customer parameters are sent to Reddit?

Every event carries every available match key: hashed email and phone, external_id, the rdt_cid click ID, user agent and IP address. Personal data is hashed with SHA-256 before it leaves Upstack.

Q: How do I check that Stripe events are reaching Reddit?

Upstack marks the destination Healthy, and Events Manager in Reddit Ads Manager shows recent events with a Server badge for CAPI events and an EMQ score for each event type. Conversion volume may fluctuate during the first 48 hours while Reddit’s deduplication adjusts.

Q: How long does it take to connect Stripe to Reddit?

Most brands are live in under 20 minutes. Once Stripe events reach Upstack, every destination receives the same resolved events, Reddit included.

Each event is resolved to a person against a 750M+ device graph before it reaches Reddit, 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 Stripe event reaches Reddit. Sent from your app, resolved to a person, then forwarded.

01 Capture

Captured from Stripe

For apps that bill through Stripe, send payment and subscription events to Upstack with the Upstack Pixel and JavaScript SDK, resolved to a customer before they reach the tools you spend on.

See the Stripe integration

StripeWhat it sends

subscription_initial_purchaseyou fire it for the first subscription order
subscription_recurring_purchaseon invoice.paid for an existing subscription
payment_succeededmaps to invoice.paid or charge.succeeded
payment_refundedmaps to charge.refunded
amount / currencyamount in cents, with invoiceId and subscriptionId

02 Understand

Resolved to one person before it leaves

Every Stripe 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 Reddit

Forward resolved conversions to the Reddit Conversions API, so a platform where the click and the purchase are often days apart still gets credited.

See the Reddit integration

RedditWhat it receives

hashed email / phoneidentity matching on arrival
rdt_cidcredit the click that drove it
external_idstable person across sessions
conversion_iddedupe against the browser pixel
value / currencyvalue-based bidding

Which events reach Reddit

Each Upstack event is mapped to the Reddit event below before it is sent.

Upstack event	Sent to Reddit as	Key data on the event
Page view	PageVisit	URL, referrer, user agent
Product view	ViewContent	products, value, currency
Add to cart	AddToCart	products, value, currency
Checkout	InitiateCheckout (custom event server-side)	value, currency, itemCount
Purchase	Purchase	value, currency, transactionId, products

Every event carries every available match key: hashed email and phone, external_id, the rdt_cid click ID, user agent and IP address. Personal data is hashed with SHA-256 before it leaves Upstack.

The catch

A retried payment produces several Stripe objects for one purchase.

Forwarding each as a conversion inflates reported performance by the retry rate, which is highest on exactly the campaigns bringing in the least reliable payment methods. Fire the Upstack event when Stripe reports the payment succeeded (invoice.paid or charge.succeeded), so only the settled payment becomes a conversion.

Where to check in RedditDelivery you can audit

Reddit Ads Events Manager Conversions API

Server events appear with a Conversions API source label, and the events table shows which parameters arrived.

What changes

What changes when Stripe feeds Reddit. Two gains on the Reddit side, two on the Stripe side.

Server-side delivery

By default Upstack sends events to Reddit from its servers as well as through the Reddit tag, so an event an ad blocker or browser privacy setting stops in the browser still arrives from the server.

Identity-resolved events

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

Stripe

Subscription purchases as events

Fire subscription_initial_purchase for the first order and subscription_recurring_purchase each time a renewal is paid, so first orders and renewals are reported separately.

Stripe

Payments and refunds

payment_succeeded, payment_failed and payment_refunded each map to a Stripe event (invoice.paid or charge.succeeded, invoice.payment_failed, charge.refunded), so money events reach Upstack when your app fires them.

Setup

Live in under 20 minutes.

You need admin access to a Reddit Ads account.

Upstack dashboardExample

Reddit Ads Destination Healthy

Read the full Reddit setup guide

01

Install the Upstack Pixel and SDK

Add the Upstack Pixel to your app, then fire the subscription and payment events with the JavaScript SDK when Stripe reports them, such as subscription_recurring_purchase when invoice.paid fires for an existing subscription.
02

Add the Reddit destination

Under Destinations, add Reddit Ads with your Pixel ID (typically prefixed with t2_) and a Conversions API access token generated in Events Manager in Reddit Ads Manager.
03

Check Event Match Quality

Upstack marks the destination Healthy, and Events Manager in Reddit Ads Manager shows recent events with a Server badge for CAPI events and an EMQ score for each event type. Conversion volume may fluctuate during the first 48 hours while Reddit’s deduplication adjusts.

FAQ

Questions about Stripe and Reddit.

Will my events be counted twice if I run both the Pixel and CAPI?

No. Upstack sends a shared conversion_id on every server-side event, and Reddit deduplicates against the matching browser Pixel event. As long as the Pixel ID in Upstack matches the Pixel ID firing in your storefront, deduplication is automatic.

Which events does Reddit receive?

PageView as PageVisit, ViewContent as ViewContent, AddToCart as AddToCart, InitiateCheckout as InitiateCheckout (custom event server-side) and Purchase as Purchase.

Which customer parameters are sent to Reddit?

Every event carries every available match key: hashed email and phone, external_id, the rdt_cid click ID, user agent and IP address. Personal data is hashed with SHA-256 before it leaves Upstack.

How do I check that Stripe events are reaching Reddit?

Upstack marks the destination Healthy, and Events Manager in Reddit Ads Manager shows recent events with a Server badge for CAPI events and an EMQ score for each event type. Conversion volume may fluctuate during the first 48 hours while Reddit’s deduplication adjusts.