From 4b85429fc5a74deb633079d6714553faa5c08464 Mon Sep 17 00:00:00 2001
From: "posthog[bot]" <206114724+posthog[bot]@users.noreply.github.com>
Date: Wed, 26 Aug 2026 17:15:57 +0000
Subject: [PATCH] feat(settings): show AWS region on project region card

The project region card printed only "EU Cloud" or "US Cloud" and never
the AWS region. Support cites this card as the written record of where a
customer's data is hosted, so a pay-as-you-go customer had no way to see
"eu-central-1" in the product.

Add a Region to AWS-region map and append the AWS region to the card, so
EU Cloud reads "EU Cloud (AWS eu-central-1)" and US Cloud reads
"US Cloud (AWS us-east-1)".

Generated-By: PostHog Desktop
Task-Id: c750ec55-487f-44f5-8c2f-36a30183a0a2
---
 frontend/src/lib/constants.tsx                            | 7 +++++++
 frontend/src/scenes/settings/environment/TeamSettings.tsx | 5 +++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/frontend/src/lib/constants.tsx b/frontend/src/lib/constants.tsx
index a849336d494c..8e0a087ef4f1 100644
--- a/frontend/src/lib/constants.tsx
+++ b/frontend/src/lib/constants.tsx
@@ -626,6 +626,13 @@ export const CLOUD_HOSTNAMES = {
     [Region.DEV]: 'app.dev.posthog.dev',
 }
 
+// AWS region each PostHog Cloud runs in. Customers need this in writing for data-processing reviews.
+export const CLOUD_AWS_REGIONS: Record<Region, string | null> = {
+    [Region.US]: 'us-east-1',
+    [Region.EU]: 'eu-central-1',
+    [Region.DEV]: null,
+}
+
 export const SESSION_RECORDINGS_PLAYLIST_FREE_COUNT = 5
 export const SESSION_RECORDINGS_TTL_WARNING_THRESHOLD_DAYS = 10 // days
 
diff --git a/frontend/src/scenes/settings/environment/TeamSettings.tsx b/frontend/src/scenes/settings/environment/TeamSettings.tsx
index ff99235107a2..67a45ec0fbfa 100644
--- a/frontend/src/scenes/settings/environment/TeamSettings.tsx
+++ b/frontend/src/scenes/settings/environment/TeamSettings.tsx
@@ -9,7 +9,7 @@ import { AuthorizedUrlListType } from 'lib/components/AuthorizedUrlList/authoriz
 import { CodeSnippet } from 'lib/components/CodeSnippet'
 import { JSSnippet } from 'lib/components/JSSnippet'
 import { RestrictionScope, useRestrictedArea } from 'lib/components/RestrictedArea'
-import { TeamMembershipLevel } from 'lib/constants'
+import { CLOUD_AWS_REGIONS, TeamMembershipLevel } from 'lib/constants'
 import { LemonField } from 'lib/lemon-ui/LemonField'
 import { Link } from 'lib/lemon-ui/Link'
 import { userHasAccess } from 'lib/utils/accessControlUtils'
@@ -81,6 +81,7 @@ export function TeamVariables(): JSX.Element {
     const { preflight } = useValues(preflightLogic)
 
     const region = preflight?.region
+    const awsRegion = region ? CLOUD_AWS_REGIONS[region] : null
 
     const RESET_CONFIRMATION = 'RESET'
 
@@ -157,7 +158,7 @@ export function TeamVariables(): JSX.Element {
                     <div className="border rounded p-4 space-y-3 bg-bg-light flex-1 min-w-60">
                         <LemonLabel className="mb-0">Region</LemonLabel>
                         <CodeSnippet compact thing="project region">
-                            {`${region} Cloud`}
+                            {awsRegion ? `${region} Cloud (AWS ${awsRegion})` : `${region} Cloud`}
                         </CodeSnippet>
                         <p className="text-muted text-xs mb-0">Where your PostHog data is hosted.</p>
                     </div>