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Andy Miscuk avatar image
Andy Miscuk asked Phong Vu commented

OAU-251 - "Unauthorized for this grant type"

Apologies, I am perplexed. Has something changed with how API calls are handled in the past year. I had code that was working but now I get the above error. Has there been a URL change or perhaps formatting? I am using "3-legged OAuth flow authorization code" Thanks, Andy

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Phong Vu answered

What is your app platform type? Check this old thread to see how to change/fix your issue.

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Andy Miscuk avatar image
Andy Miscuk answered Phong Vu commented

Private windows desktop

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The change for that platform type is that it will no longer support password flow. However, you said that you have problem to login with 3-legged OAuth and you app is an old app? Please confirm and give me your app client id so I can check for you.

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p24OBV_bS0-6r1mi9kmTLQ

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Your app was created on Sep 6, and it is a Desktop/Windows platform type which allows only 3-legged authorization flow. However, you have not specified the OAuth redirect URI for your app so I don't think that you could ever login your app with 3-legged authorization flow.

If you really need 3-legged authorization flow, specify the redirect URI and implement your app to handle the authorization code accordingly. https://developers.ringcentral.com/guide/authentication/auth-code-flow

If you just want to have password flow, create a new app with Server-only platform type. Or let me know so I can help change your current app platform type. https://developers.ringcentral.com/guide/authentication/password-flow

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Thank you!

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Andy Miscuk avatar image Andy Miscuk Phong Vu ♦♦ ·

@Phong Vu , have you had a chance to review this?

Thanks,

Andy

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Review what? See my instructions in the previous comment and make your choice.

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