What are brands
The brand is basically the main section in LinkMngr for adding custom domain/s, adding team members with specific permission, setting up query parameters, and link retargeting.
It is suggested to create a separate brand for each business so that you can label traffic separately through query parameters and add a new target audience through link retargeting.
You can also group multiple domains into one brand. For example, if your business has multiple domains like mybusiness.com, mybusiness.co, etc, you can pack them all under one brand.