The apikey is a mandatory key required to access the API service.
How to Obtain an API Key?
If you are a main system user, you can log in with your user code and password, and retrieve your API key from the "Corporate Integration" module under API Key definitions.
If you are a user of the E-Business (B2B) system, you can log in with your user code and password, and if authorized, use the API key displayed in your user information.
If you do not have access to the system, please contact the company to obtain your API key.