Groups - synced from the eligibility file. This groups people by the known data Limeade has (e.g. location, job function, etc.)
Channels - helps the company organize how content is delivered. Channels are usually seen as Corporate News or Human Resources and are all designed to better organize information. Channels can be mandatory or opt-in. When a communicator is looking to provide relevant content, they would do so by targeting a group and then selecting the appropriate channel.