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Twilio SMS Error - Status 401, Code 20003 - Postman

I'm trying to send SMS using Twilio from my PHP code and Postman but it always returns the error below. I confirm everything is correctly set and everything was working months ago.

  • SID and TOKEN are correct and verified 5 times
  • Auth method is correct and the error persists also via test on Postman
  • The query is correct and it is the same as the test SMS sent from the Twilio console

    • Error:

    { "code": 20003, "message": "Authenticate", "more_info": "https://www.twilio.com/docs/errors/20003", "status": 401 }

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    3

    1 Answer

    It seems the account sid used for Basic Auth is different from the one shown in the URL. Try to align the two of them and it should work.

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