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Alex Saale avatar image
Alex Saale asked ·

Why am I receiving an "authentication error" when trying to integrate with FaxOut?

Trying to C# integrate with FaxOut api. Keep getting an authentication error even though credentials correct. Does anyone have an example of the http post request to send a fax?

The example provided at http://success.ringcentral.com/articl... does not seem to work.
apifaxoutauthentication errorcerror message
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Ryan Terwedo avatar image
Ryan Terwedo answered ·
We have same issue and have tried all suggestions here.  Weird thing is it works about 1/10 times - sometimes.  I can understand always working, or always not working but sometimes makes it harder.  We have tried with every number in our account, with and without 1 and changing form data...  cannot sort it out.

Obviously we checked passwords via logging into UI.

Help?
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Alexey Belozerov avatar image
Alexey Belozerov answered ·
I have figured it out. Cookies must be handled when doing requests to Fax API.

To ensure you can create test HTML page, open it in browser and it will work well, you will get "0 - Success". Then clear and disable cookies in browser and try again: after few requests endpoint begin to respond with "1 - Authorization Failed"
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