If you already have your keys, please skip this step.
The API ID and API Key will be used to sign the data flow between your website and the Gateway.
Using a signature (hash) guarantees that transmitted data cannot be tampered with.
Once you have generated your API ID and API Key, you have to add HTML forms or HTML links to your web pages or emails to submit payment requests to the gateway.
You will find a detailed description on how to create HTML forms and links in the API Reference Manual here....