Stripe webhook no signatures found matching the expected signature for payload: customer.subscription.deleted events...

TL;DR

Fix the raw body and the endpoint signing value, in that order. The no signatures found error means Stripe signed one payload and your endpoint verified a different set of bytes or a different endpoints signing value, most often because a framework parsed the JSON first or the endpoint was recreated during a dashboard cleanup. Verify against the untouched raw request body with the signing value from the exact live endpoint, then replay the missed subscription deletions from Stripe.

Stripe webhook no signatures found matching the expected signature for payload: customer.subscription.deleted events missed

Use this when

• Stripe webhook deliveries show signature verification failures in the endpoint event log
• customer.subscription.deleted and other events are all rejected, not only one event type
• A deploy, framework change, or endpoint recreation happened near the first failure

Not for this skill when

• Events verify successfully but your handler throws later, which is an application bug after verification
• Only test mode events fail while live events pass, pointing at a mode mix-up in one sender

Steps

1. Open the webhook endpoint in the Stripe Dashboard for the correct account and mode, live or test, and open a failed delivery to read the exact error and the event id. Confirm the endpoint URL Stripe is sending to is your current production endpoint and not a retired path or a preview deployment that someone left registered. Verify: the failing deliveries, endpoint URL, and mode are confirmed from Stripes own delivery log
2. Check how your handler obtains the payload. Signature verification must run on the raw request body bytes exactly as received. If Express, a serverless platform, or a proxy parses JSON, re-encodes it, or strips whitespace before verification, every signature fails. Move verification before any body parsing, using the raw body option in your framework, and log body length only, never the payload contents, while testing. Verify: a test event sent from the Dashboard verifies successfully with the raw body path
3. Confirm the signing value in your configuration came from this endpoint in this account and mode. Recreating an endpoint issues a new signing value, connected account endpoints have their own, and test and live values differ. Compare the value fingerprint in your configuration store with the Dashboard value without printing either in logs or tickets. Verify: the configured signing value matches the live endpoint shown in the Dashboard
4. Rule out payload mutation in transit. Compression, request rewrites, and some WAF or API gateway transforms can alter bytes before your code sees them. Send a Dashboard test event through the full production path and through a direct local tunnel with the same code and compare which one verifies, to isolate any middle layer that rewrites requests. Verify: the layer that mutates the payload, if any, is identified or ruled out by the paired test
5. Once verification passes, recover the missed cancellations. List customer.subscription.deleted events in Stripe for the failure window through the Dashboard or API, and feed each through the same handler logic the webhook would have run, deduping on event id so accounts already processed are not churned twice in your CRM. Verify: every missed deletion event in the window is processed once and the churn list matches Stripe
6. Add monitoring on webhook health. Alert on any signature failure and on an hour with zero successful deliveries during business traffic, and store endpoint changes, signing value rotations, and mode in the deploy checklist so the next endpoint cleanup does not silently sever the churn feed again. Verify: the alerts exist and a deliberately bad test signature pages the owning team

Why it happens

Stripe signs the exact bytes it sends, plus a timestamp, with the endpoints signing value. Any re-serialisation changes the bytes, and any endpoint recreation changes the value, either of which produces this error for one hundred percent of deliveries. Because the handler correctly refuses unverified events, cancellations stop flowing and the failure looks, from the CRM side, like customers simply stopped cancelling.

Compatibility: Stripe webhooks, endpoint signing values, and the Stripe Dashboard event delivery log, in current Stripe API versions, with handlers in common web frameworks.

Variants and edge cases

Stripe webhook signature verification failed raw body

['The raw-body phrasing, the most common root cause after a framework migration. Framework docs for your stack will name the exact raw body setting to use.']

no signatures found matching expected signature for payload fix

['The verbatim-error phrasing. Match it against endpoint recreation and mode mismatch before rewriting verification code that worked yesterday.']

Stripe subscription deleted webhook missed churn not recorded

['The business-symptom variant. Recovery means listing and replaying events from Stripe for the whole failure window, not only fixing verification going forward.']

Edge cases to work through before you close the incident:

• Never disable signature verification to restore flow. That trades a visible outage for an invisible forgery risk on billing events.
• Rotate a signing value only with the overlap Stripe supports, and update every deployment, including workers and preview environments that share the endpoint configuration.
• Clock skew beyond Stripes tolerance also fails verification but with a different message about timestamps. Read the exact error before assuming the signing value is wrong.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_N3pWfDbT9x-n72sCjXcH6g