# Invalid Redirect(4700) Error when oAuth flow **URL:** \ **Category:** App Marketplace\ **Created:** [April 27, 2020, 5:17am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995 "2020-04-27T05:17:30Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![sunyeol.lim](https://avatars.discourse-cdn.com/v4/letter/s/f0a364/32.png) [@sunyeol.lim](https://devforum.zoom.us/u/sunyeol.lim)\ **Post date:** [April 27, 2020, 5:17am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/1 "2020-04-27T05:17:30Z")
**Description** Invalid Redirect Error when oAuth flow **Error** ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/e/e07ee0b92167553bb0124ed4ef12993cf8d60e9c.png) [https://ktaproxy.stage.samsung.net/appbridge/api/callback/zoom/825392860624326657](https://ktaproxy.stage.samsung.net/appbridge/api/callback/zoom/825392860624326657) **Which App?** KnoxTeams **How To Reproduce (If applicable)** Steps to reproduce the behavior: 1. Access with below url [https://zoom.us/oauth/authorize?response\_type=code&client\_id=RqP4vbRRAaqgpWdD54b9Q&redirect\_uri=https://ktaproxy.stage.samsung.net/appbridge/api/callback/zoom/825392860624326657](https://zoom.us/oauth/authorize?response_type=code&client_id=RqP4vbRRAaqgpWdD54b9Q&redirect_uri=https://ktaproxy.stage.samsung.net/appbridge/api/callback/zoom/825392860624326657) 2. Sign in valid account 3. See error **Additional context** It worked fine until two days ago. After that, there are no changes, but it does not work suddenly. ---
**Author:** ![Dilip\_Reddy\_Guda](https://avatars.discourse-cdn.com/v4/letter/d/e79b87/32.png) [@Dilip\_Reddy\_Guda](https://devforum.zoom.us/u/Dilip_Reddy_Guda)\ **Post date:** [April 27, 2020, 3:06pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/2 "2020-04-27T15:06:13Z")
Hi, we also encountered this issue few moments back. try adding the callback url to whitelist url field. that worked for us. seems like new changes on zoom end. I am not from zoom support, just thought of notifying what worked for us. Regards Dilip ---
**Author:** ![sunyeol.lim](https://avatars.discourse-cdn.com/v4/letter/s/f0a364/32.png) [@sunyeol.lim](https://devforum.zoom.us/u/sunyeol.lim)\ **Post date:** [April 27, 2020, 4:17pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/3 "2020-04-27T16:17:42Z")
Hi, Now working fine! Thank you so much! ---
**Author:** ![rafal](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rafal](https://devforum.zoom.us/u/rafal)\ **Post date:** [April 29, 2020, 8:31am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/4 "2020-04-29T08:31:42Z")
Same issue here, it worked fine until about two days ago. The callback URL is whitelisted in the Zoom app, both HTTP and HTTPS. Any ideas what can be wrong? ---
**Author:** ![ojus.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ojus.zoom/32/734_2.png) [@ojus.zoom](https://devforum.zoom.us/u/ojus.zoom)\ **Post date:** [April 30, 2020, 4:55am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/5 "2020-04-30T04:55:51Z")
hi @rafal @Dilip_Reddy_Guda @sunyeol.lim, Apologies for the inconvenience. Can you please send the client ID of your app to [developersupport@zoom.us](mailto:developersupport@zoom.us)? Thanks, Ojus ---
**Author:** ![rafal](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rafal](https://devforum.zoom.us/u/rafal)\ **Post date:** [April 30, 2020, 8:15am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/6 "2020-04-30T08:15:01Z")
@ojus.zoom, sent! Thanks! ---
**Author:** ![ojus.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ojus.zoom/32/734_2.png) [@ojus.zoom](https://devforum.zoom.us/u/ojus.zoom)\ **Post date:** [April 30, 2020, 10:17pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/7 "2020-04-30T22:17:05Z")
@rafal Can you check your app again? it should be fixed. Please make sure that your redirect URI and the whitelist URL are exactly the same. Thanks ---
**Author:** ![rafal](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rafal](https://devforum.zoom.us/u/rafal)\ **Post date:** [May 1, 2020, 6:37am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/8 "2020-05-01T06:37:03Z")
@ojus.zoom unfortunately, there is still the same error. Redirect URI and the whitelist URL are the same. ---
**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:** [May 1, 2020, 5:11pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/9 "2020-05-01T17:11:36Z")
Hey @rafal, Are you setting the same [redirect url in the install url?](https://marketplace.zoom.us/docs/guides/auth/oauth#getting-access-token) Thanks, Tommy ---
**Author:** ![rafal](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rafal](https://devforum.zoom.us/u/rafal)\ **Post date:** [May 5, 2020, 8:09am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/10 "2020-05-05T08:09:47Z")
Hi @tommy yes it’s the same. I even regenerated publishable URL and it still does not work. ---
**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:** [May 11, 2020, 6:20pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/11 "2020-05-11T18:20:08Z")
Hey @rafal, What url are you using for the [install url](https://marketplace.zoom.us/docs/guides/auth/oauth#getting-access-token)? Please share so I can debug. Thanks, Tommy ---
**Author:** ![jinadattaraj](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jinadattaraj/32/9484_2.png) [@jinadattaraj](https://devforum.zoom.us/u/jinadattaraj)\ **Post date:** [May 29, 2020, 3:15pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/12 "2020-05-29T15:15:45Z")
Hi, I am seeing the similar issue about the invalid redirect URL. Please refer to the App used for this testing at “[https://marketplace.zoom.us/develop/apps/n9KSP-RKTU6o8EJx3m626w/credentials](https://marketplace.zoom.us/develop/apps/n9KSP-RKTU6o8EJx3m626w/credentials)”. Jina ---
**Author:** ![sabin.analogue51](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sabin.analogue51/32/3639_2.png) [@sabin.analogue51](https://devforum.zoom.us/u/sabin.analogue51)\ **Post date:** [May 31, 2020, 6:58am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/13 "2020-05-31T06:58:51Z")
5m7mvnGWTaOInNDyVHl29g this is my app id. i am also facing the same problem. can you please look into it ---
**Author:** ![jinadattaraj](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jinadattaraj/32/9484_2.png) [@jinadattaraj](https://devforum.zoom.us/u/jinadattaraj)\ **Post date:** [June 2, 2020, 8:52am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/14 "2020-06-02T08:52:45Z")
Hi All, Can I get any help here. I am getting the attached message while trying to deploy the app ![Message](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/e/e14c1cc5db92eb607fb121caad5bc15f508a3a52.jpeg) ---
**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:** [June 8, 2020, 4:16pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/15 "2020-06-08T16:16:47Z")
Hey @jinadattaraj, Try to use an Admin or Owner Zoom user to install the app. Or you can change your [permissions](https://zoom.us/role#/) to match the [apps scopes](https://marketplace.zoom.us/develop/apphelp/n9KSP-RKTU6o8EJx3m626w/). Are you still seeing the invalid redirect URL issue? 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:** [June 8, 2020, 4:17pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/16 "2020-06-08T16:17:49Z")
Hey @sabin.analogue51, Make sure your redirect URL matches your whitelist. What is your app name? Thanks, Tommy ---
**Author:** ![jinadattaraj](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jinadattaraj/32/9484_2.png) [@jinadattaraj](https://devforum.zoom.us/u/jinadattaraj)\ **Post date:** [June 10, 2020, 12:30pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/17 "2020-06-10T12:30:46Z")
Hi Tommy, Thank you for your response. Our monitoring team did try with the required Admin rights to install the app. Their response is as below. ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/d/df9c903e260974e81aeed7bfa42173c0546de6ab.png) ---
**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:** [June 15, 2020, 5:16pm UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/18 "2020-06-15T17:16:35Z")
Hey @jinadattaraj, It would be great to communicate with them directly on this thread. Please make sure they are following the OAuth flow: > **[OAuth 2.0 - Authorization - Documentation](https://marketplace.zoom.us/docs/guides/auth/oauth)** > > OAuth with Zoom > > The Zoom API uses OAuth 2.0 to authenticate and authorize users to make requests. To setup access credentials and request scopes for yo... Thanks, Tommy ---
**Author:** ![thanh.huynh](https://avatars.discourse-cdn.com/v4/letter/t/74df32/32.png) [@thanh.huynh](https://devforum.zoom.us/u/thanh.huynh)\ **Post date:** [August 11, 2020, 4:09am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/19 "2020-08-11T04:09:55Z")
Please help, Special characters in redirect\_uri will cause error For example: redirect\_uri=https://abc.com/Zoom/Auth?state=dsad13213|} It worked fine if I changed it to [https://abc.com/Zoom/Auth?state=abc](https://abc.com/Zoom/Auth?state=abc) It is absolutely a bug Please fix it ---
**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 11, 2020, 4:41am UTC](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995/20 "2020-08-11T04:41:25Z")
Hey @thanh.huynh, Please try [base64encoding](https://www.base64encode.org/) or [url encoding](https://www.urlencoder.org/) your state params if they include special characters. Thanks, Tommy [Next page](https://devforum.zoom.us/t/invalid-redirect-4700-error-when-oauth-flow/14995.md?page=2)