# {"reason":"Invalid Token!","error":"invalid\_request"} **URL:** \ **Category:** API and Webhooks\ **Created:** [August 19, 2020, 6:50am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567 "2020-08-19T06:50:16Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![kristian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kristian/32/951_2.png) [@kristian](https://devforum.zoom.us/u/kristian)\ **Post date:** [August 19, 2020, 6:50am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/1 "2020-08-19T06:50:16Z")
**Description** I am unable to refresh access tokens **Error** I constantly get this error: `{"reason":"Invalid Token!","error":"invalid_request"}` **Which App Type (OAuth / Chatbot / JWT / Webhook)?** Oauth **Which Endpoint/s?** [https://zoom.us/oauth/token](https://zoom.us/oauth/token) **How To Reproduce (If applicable)** Steps to reproduce the behavior: ```auto curl -X POST -H "Content-Type:application/x-www-form-urlencoded" \ --user {client-id}:{client-secret} \ --data 'grant\_type=refresh\_token&refresh\_token={refresh-token}' \ https://zoom.us/oauth/token ``` **Additional context** I am not sure why this isn’t working. When I get the initial access token, I can make requests just fine. I store the refresh token and when the access token expires after an hour, I try to refresh it and get this error. According to the docs ([https://marketplace.zoom.us/docs/guides/auth/oauth#refreshing](https://marketplace.zoom.us/docs/guides/auth/oauth#refreshing)), I should set `grant_type` and `refresh_token` as query params. However, someone notes ([REST API error on OAuth token refresh](https://devforum.zoom.us/t/rest-api-error-on-oauth-token-refresh/1520/6)) that it should really be form encoded. But neither seem to work for me. My app is listed on the marketplace. I see that some people make the mistake of not storing the latest refresh token but that is not the case here, because I get this error on the first attempt. I also see that some have had issues when using the new access token immediately after receiving it but that is obviously also not the case as I never receive a new one 🙂. I am not sure what to do from here. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 21, 2020, 8:44pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/2 "2020-08-21T20:44:46Z")
Hey @kristian, What is your app name? Are you able to make the refresh request via Postman? ![Screen Shot 2020-08-21 at 2.44.36 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/1/10f68648dac0301d7c1e87e2a8c42419a4539c3f.png) Thanks, Tommy ---
**Author:** ![kristian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kristian/32/951_2.png) [@kristian](https://devforum.zoom.us/u/kristian)\ **Post date:** [August 26, 2020, 6:35pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/3 "2020-08-26T18:35:20Z")
Hi Tommy, App name is Submotion. It doesn’t seem to work for me: ![billede](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/4/434f3952be624390f715a96bd6f197dde1c5cddb.png) ---
**Author:** ![kristian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kristian/32/951_2.png) [@kristian](https://devforum.zoom.us/u/kristian)\ **Post date:** [August 27, 2020, 6:42am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/4 "2020-08-27T06:42:29Z")
@tommy I can send you the clientid and secret in a DM or something if you want ---
**Author:** ![kristian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kristian/32/951_2.png) [@kristian](https://devforum.zoom.us/u/kristian)\ **Post date:** [August 31, 2020, 5:51am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/5 "2020-08-31T05:51:54Z")
Any hints on how to debug this would be greatly appreciated. It’s quite frustrating to work with because I have to re-authorize and wait for the token to expire to try something out and I don’t know what else to try at this point. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 31, 2020, 3:59pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/6 "2020-08-31T15:59:13Z")
Hey @kristian, I have just DM’d you. Thanks, Tommy ---
**Author:** ![nsaxena](https://avatars.discourse-cdn.com/v4/letter/n/73ab20/32.png) [@nsaxena](https://devforum.zoom.us/u/nsaxena)\ **Post date:** [August 31, 2020, 5:56pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/7 "2020-08-31T17:56:53Z")
Hi Tommy, We have business account, In SDK when joining meeting it is giving error. here is detail- **localJsonpCallback({status: false, errorCode: 200, errorMessage: “The signature has expired.”})** **errorCode: 200** **errorMessage: "The signature has expired."** **status: false** ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/4/477fe6dbd49be898a6798ab47262eb04ffa39c0c.png) And when we click on ‘RETRY’ button zoom environment is loading. here is screenshot - ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/a/a3e733447765dc65bd3f91f5ca21da74640afd40.png) Signature I am creating through java version at server side which you are providing in below portal - > **[Generate Signature - Essential Guides - Web - Native SDKs - Zoom Software...](https://marketplace.zoom.us/docs/sdk/native-sdks/web/essential/signature)** > > Generate Signature > > Each request to Start or Join a Meeting / Webinar must be verified by an encrypted signature authorizing the user to enter. > > The sig... I tested different browser and also cleared cache, and added SetTimeOut on ZoomMtg.join() but did not helped. Date format sample : 2020-08-31T16:49:18Z Type : 1 **SDK Version : 1.7.10** JWT App : DevTokenApp Appreciate if you provide me a quick help. Let me know how can share you detail in private message if required. I am using JWT token? Nikhil ---
**Author:** ![kristian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kristian/32/951_2.png) [@kristian](https://devforum.zoom.us/u/kristian)\ **Post date:** [September 2, 2020, 10:38am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/8 "2020-09-02T10:38:43Z")
So for future visitors of this thread, it _seems_ to be resolved for me now. I didn’t change any code, so I am not sure what caused it. I did do one thing though, with Tommys help: I went to the “Test the App Locally” tab in the management UI, clicked “uninstall” and then “install”. I have had one report of an invalid token after doing this, but I am currently unable to reproduce it so I am crossing my fingers that it’s now working. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [September 4, 2020, 8:32pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/9 "2020-09-04T20:32:54Z")
Hey @nsaxena, Please create a topic here: #web-sdk 🙂 Thanks, Tommy ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [September 4, 2020, 8:34pm UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/10 "2020-09-04T20:34:28Z")
Hey @kristian, Thanks for sharing your solution! 🙂 Please let me know if you run into the issue again. Thanks, Tommy ---
**Author:** ![hurle170](https://avatars.discourse-cdn.com/v4/letter/h/91b2a8/32.png) [@hurle170](https://devforum.zoom.us/u/hurle170)\ **Post date:** [September 12, 2020, 12:58am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/11 "2020-09-12T00:58:00Z")
I am having the same issue with my user managed app. All token refresh requests get the same invalid token error. I’ve ensured all the needed headers are present and that I am for sure sending the refresh token. The initial token works for all requests, but I can never refresh them. Any debugging suggestions? ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [September 15, 2020, 12:43am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/12 "2020-09-15T00:43:08Z")
Hey @hurle170, Are you able to reproduce the issue in Postman? Typically the issue relays in the logic within the code implementing the OAuth flow. Please create a new topic since this one is solved. 🙂 Thanks, Tommy ---
**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:** [October 15, 2020, 10:43am UTC](https://devforum.zoom.us/t/reason-invalid-token-error-invalid-request/27567/13 "2020-10-15T10:43:11Z")
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