# Validate Webhooks Endpoint Fails with Invalid TLS certificate **URL:** \ **Category:** API and Webhooks\ **Tags:** webhooks\ **Created:** [March 7, 2023, 10:10am UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286 "2023-03-07T10:10:53Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![mirkin23](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mirkin23/32/46179_2.png) [@mirkin23](https://devforum.zoom.us/u/mirkin23)\ **Post date:** [March 7, 2023, 10:10am UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/1 "2023-03-07T10:10:53Z")
When I hit the validate button when adding our latest endpoint URL for Zoom Webhooks I’m getting Invalid TLS certificate error. The URL is accessible in every browser I tested and curl which all validate the certificate. Kind of a show-stopper for us. We’ve used webhooks for other projects in the past with no problems. Any help is appreciated. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [March 13, 2023, 9:53pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/2 "2023-03-13T21:53:32Z")
Hi @mirkin23 Thanks for reaching out to the Zoom Developer Forum, I am happy to help here! Have you been able to troubleshoot this error? Or are you still facing this issue? Here is a link to our Docs about the Webhook Endpoint requirements: [https://marketplace.zoom.us/docs/api-reference/webhook-reference/#webhook-endpoint-requirements](https://marketplace.zoom.us/docs/api-reference/webhook-reference/#webhook-endpoint-requirements) Let me know if you need anything else moving forward Best, Elisa ---
**Author:** ![reyaz.ahmed](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@reyaz.ahmed](https://devforum.zoom.us/u/reyaz.ahmed)\ **Post date:** [March 14, 2023, 2:25pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/3 "2023-03-14T14:25:59Z")
Hi @elisa.zoom I am trying to create a webhook in my zoom app, I have created API using AWS API Gateway which executes AWS Lambda function (Node.Js) to validate. I have added code from the documentation as below: const { body } = event; if(body.event === ‘endpoint.url\_validation’) { ```auto const hashForValidate = CryptoJS.createHmac('sha256', 'xxxxxxx').update(body.payload.plainToken).digest('hex') const response = { statusCode: 200, body: JSON.stringify({ plainToken: body.payload.plainToken, encryptedToken: hashForValidate }), }; return response; } ``` But every time it showing URL validation failed, Try again later, Could you please help me to solve this issue. ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [March 14, 2023, 10:24pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/4 "2023-03-14T22:24:16Z")
Thanks @reyaz.ahmed I think it could be the way you are sending the response back , according to our docs, it should be a json object and status. Can you try sending something like this? ```auto response.status(200) response.json({ "plainToken": request.body.payload.plainToken, "encryptedToken": hashForValidate }) ``` ---
**Author:** ![reyaz.ahmed](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@reyaz.ahmed](https://devforum.zoom.us/u/reyaz.ahmed)\ **Post date:** [March 15, 2023, 5:32am UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/5 "2023-03-15T05:32:41Z")
Hi @elisa.zoom , As I am using aws lambda function we need to return the response and response.status will not work, so I tried as below: return response.json({ status: 200, plainToken: event.body.payload.plainToken, encryptedToken: hashForValidate }); but still it won’t work ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [March 15, 2023, 12:15pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/6 "2023-03-15T12:15:55Z")
Hi @reyaz.ahmed I see, when you run your app and click on validate are you getting any errors in your terminal? ---
**Author:** ![reyaz.ahmed](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@reyaz.ahmed](https://devforum.zoom.us/u/reyaz.ahmed)\ **Post date:** [March 15, 2023, 12:20pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/7 "2023-03-15T12:20:16Z")
Hi @elisa.zoom , Yes when I am clicking validate button in the app, below error showing. ![err](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/d/f/dfbad1833428febff7742e4ec288bc34248e3de9.png) ---
**Author:** ![anderson.miranda](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/anderson.miranda/32/32651_2.png) [@anderson.miranda](https://devforum.zoom.us/u/anderson.miranda)\ **Post date:** [June 6, 2023, 12:45pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/8 "2023-06-06T12:45:55Z")
I’m facing the same problem: Invalid TLS certificate But the certificate is valid, it’s is from Let’s encrypt… Any solution for this problem? ---
**Author:** ![sato](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@sato](https://devforum.zoom.us/u/sato)\ **Post date:** [October 31, 2023, 8:36am UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/9 "2023-10-31T08:36:43Z")
Hi @elisa.zoom , My website is using GlobalSign nv-sa certificates. I’m facing an issue related to zoom phone webhook registration: Proving invalid TLS point. But when I switch to Let’s Encrypt the certificate is valid. Is there any solution to this problem? ---
**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\ **Post date:** [November 2, 2023, 4:58pm UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/10 "2023-11-02T16:58:06Z")
Hi @sato Please make sure that you are following our docs here: > **[Using webhooks](https://developers.zoom.us/docs/api/rest/webhook-reference/)** > > The Zoom Developer Platform is an open platform that allows third-party developers to build applications and integrations upon Zoom’s video-first unified communications platform. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [November 5, 2024, 8:34am UTC](https://devforum.zoom.us/t/validate-webhooks-endpoint-fails-with-invalid-tls-certificate/84286/11 "2024-11-05T08:34:41Z")
Closed on November 5, 2024, 8:34am UTC This topic was automatically closed 368 days after the last reply. New replies are no longer allowed.