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pondus asked

Steam API AuthenticateUserTicket error response: {"response":{error":{"errorcode":3,"errordesc":"Invalid parameter"}}} for authentication ticket DummyAuthTicket

Inquiry about linking Steam and Playfab login

I get an error message when using Steam login and it doesn't work properly. I would really appreciate it if you could let me know the solution or what I made a mistake.

Steam API AuthenticateUserTicket error response: {"response":{error":{"errorcode":3,"errordesc":"Invalid parameter"}}} for authentication ticket DummyAuthTicket

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Rick Chen answered

The steam ticket in the LoginWithSteam request body should not be a dummy ticket, it has to be a real steam authentication token. Please refer to Login With Steam.

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