APIs are powerful tools, but the databases, servers, and clouds behind them do not have infinite resources. That is why it can be crucial to schedule and throttle the movement of data in and out of certain systems (more specifically throttling the calls that are made). For example, if you are working with a large product catalog, you would not want to update prices and inventory for a million product records all at once, especially not in the middle of a busy shopping day like Black Friday. You would want to stream in updates more manageably so as not to overwhelm the eCommerce site. iPaaS.com supports rate limiting, allowing you to ensure that key systems are not bombarded with data.