UPS Login Credentials
You will need a UPS account to use this extension which you can create here: https://wwwapps.ups.com/doapp/signup?ClientId=GEC&loc=de_DE&returnto=https:%2F%2Fwww.ups.com%2Fupsdeveloperkit%3Floc%3Dde_DE
Next, you will need a UPS customer number and an access key for the UPS shipping API. You can request both here: https://www.ups.com/upsdeveloperkit/requestaccesskey?loc=de_DE
Once you have all your login details, enter them in the constant editor under category ups_api/credentials.
You can set whether you are using live or test mode under
themes.configuration.extension.upsapi.credentials.mode. Use Debugging mode for testing and debugging and Production for live mode.