First you need to create a login in Infor OS
Once you have download the file you can start Postman. In Postman you need to configure the authorization.
Change it to Outh2 and Request Headers
Change the Grant Type to Password Credentials.
Enter pu + ot from the json file into the Access Token URL e.g.
https://mingle-sso.se2.inforcloudsuite.com:443/FellowConsulting_DEV/as/token.oauth2
Enter saak from the json file into the Username.
Enter sask from the json file into the Password.
Enter ci from the json file into the Client ID.
Enter cs from the json file into the Client Secret.