This setting displays the currently defined keys used to authenticate HTTP POSTs.
For security reasons, HTTP POST auth keys are separate from autologin auth keys, since autologin auth keys are visible in links.
For best security practices you should not reuse, or tie your HTTP POST auth keys to your Infusionsoft API key, or to your autologin auth keys.
You can define multiple HTTP POST auth keys by separating each one with a comma. This makes it easy to transition from one key to another by having multiple active keys at once. HTTP POST auth keys are defined in your i2SDK plugin.