'Getting "resulted in a `400 Bad Request` response" error in integration of hubspot in my laravel application using guzzle

Client error: POST https://api.hubapi.com/contacts/v1/contact?hapikey=*** resulted in a 400 Bad Request response: {"validationResults":[{"isValid":false,"message":"Property "user_name" does not exist","error":"PROPERTY_DOESNT_EXIST" (truncated...)



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