diff --git a/adrs/madr-fxa-ctms.md b/adrs/madr-fxa-ctms.md
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+# Stripe Subscription Event Data Empowering Email User Journeys
+
+* Status: proposed
+* Deciders: Bryan Sieber, John Whitlock, Ben Bangert, Jon Buckley, (Benson Wong, Stephen Hood)
+* Date: September 30, 2021
+
+Technical Story: [design and document approach for marketing | https://mozilla-hub.atlassian.net/jira/software/c/projects/CTMS/boards/364?modal=detail&selectedIssue=CTMS-73]
+
+## Context and Problem Statement
+
+Marketing wants to be able to differentiate customers based on their subscription information to empower marketing campaigns.
+
+## Decision Drivers
+
+* Design sustainable system for longterm data-health
+* FxA source of Truth
+* Stripe rate limits
+
+
+## Considered Options
+
+* Cloud Function triggered through Firestore
+* Background process in CTMS
+* New temporary service
+
+## Decision Outcome
+
+Chosen option: " Cloud Function triggered through Firestore", because the event snapshots can be captured and published to a Pub/Sub, upon which they can be pushed to CTMS with a JWT. We believe this is a more sustainable option.
diff --git a/diagrams/subscription_event_stream_to_CTMS.svg b/diagrams/subscription_event_stream_to_CTMS.svg
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text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 140px; margin-left: 784px;"><div style="box-sizing: border-box; font-size: 0; text-align: center; "><div style="display: inline-block; font-size: 13px; font-family: Helvetica; color: #000000; line-height: 1.2; pointer-events: all; background-color: #ffffff; white-space: nowrap; ">JWT</div></div></div></foreignObject><text x="784" y="153" fill="#000000" font-family="Helvetica" font-size="13px" text-anchor="middle">JWT</text></switch></g><rect x="0" y="0" width="1030" height="40" fill="#000000" stroke="none" pointer-events="all" transform="translate(2,3)" opacity="0.25"/><rect x="0" y="0" width="1030" height="40" fill="#4da1f5" stroke="none" pointer-events="all"/><g fill="#ffffff" font-family="Helvetica" font-size="14px"><text x="51.5" y="25.5">Architecture: Stripe Webhook Event Data Flow</text></g><path d="M 325 150 L 325 210 L 387.1 210 L 387.1 259.9" fill="none" stroke="#0088ff" stroke-width="3" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 387.1 266.65 L 382.6 257.65 L 387.1 259.9 L 391.6 257.65 Z" fill="#0088ff" stroke="#0088ff" stroke-width="3" stroke-miterlimit="10" pointer-events="all"/><rect x="45" y="374" width="180" height="60" rx="1" ry="1" fill="#fff2cc" stroke="#d6b656" stroke-width="2" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; 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