Error Code: CMN-405

1 reply
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Hi everyone, I get a CMN-405 error. Any ideas why this may be happening? Thanks! ![3316-image.png][1] [1]: https://uploads-us-west-2.insided.com/ringcentral-en/attachment/3316_image.png

PhongVu

Community Manager

It is clear that you have not authenticate your app to access the platform. Read these documentation to learn how to create and app, authenticate and call the APIs https://developers.ringcentral.com/guide/applications https://developers.ringcentral.com/guide/authentication https://developers.ringcentral.com/guide/messaging/fax/sending-faxes Ask in a different thread if and when you have a particular question.

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