I’m trying to use OpenAPI to connect to Acumatica.
To follow below guideline to login Acumatica. I got a error message.
Does anyone know how to fix it? I tried to post to http and https. Both returned same message.
"message": "The requested resource does not support http method 'GET'."
Best answer by larryly
Post login request to HTTPS. Will response a 204 code with no content and cookie-set. This is a success sign. Add those cookies in your next request. Now your OpenAPI is ready to use.