If your API credentials are correct, then you may have accidentally entered in an incorrect oAuth token, or your token might have expired. Please check that you are using a oAuth token and not encoded-client-credentials. Also, make sure that for the sandbox environment, you are using api-eval endpoint, and that the username & password have login credentials for the test-web-application account, not for production. If everything looks correct, try refreshing your token using 'http://app-eval.signnow.com/oauth2/token' and resubmit your API-call again. Another possible source of errors - having a different content type other than what is specified in the example call. Make sure that it is Content-Type: application/x-www-form-urlencoded.
Why does SignNow thinks that either my user-name or my password is invalid?
- Why are emails being sent out for signature via SignNow's API but aren't being delivered for one particular document?
- Why do I keep getting the error message "Cannot send invite for document with fields"?
- Does SignNow allow you to set a custom name/email of the sender via API?
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