Unauthorized error - oauth_problem=parameter_rejected

[BrunoArg]

Fitbit team:

When trying to retrieve the Access Token, I'm getting the following error:

..

"errors":
[{
"errorType":"oauth",
"fieldName":"n/a",
"message":"oauth_problem=parameter_rejected&oauth_parameters_rejected=oauth_signature

...oauth_version...oauth_nonce...oauth_signature_method...oauth_token...oauth_timestamp
}]

 ..

Http status code: Unauthorized

Any ideas what the problem could be?

Sidenote: This happens the first time we try to connect the Fitbit application. The next time (apparently, after the user has logged in) the access token can be retrieved.

[JeremiahFitbit]

OAuth 1.0a or OAuth 2.0?

Can you please share the request (with your client credentials obfuscated)?

[BrunoArg]

This occurs using OAuth 1.0a.

This issue is happeing in a staging environment and I cannot get the request we are sending.

Based on this information, do you have any idea what's wrong?

I know parameter_rejected seems to be something wrong with the request, but we construct all requests the same way and it is weird.

Thanks,

Bruno