When should I choose Brand - Product -Topic hierarchy?

When should I choose Brand - Product - Topic hierarchy?

If your organization offers multiple products or services, and you want to send out emails specific to each product, then you should choose the Brand-Product-Topic type. In this case, you'll first have to include different types of products you provide under your brand and then have topics, under each product.
This hierarchy makes things much easier for businesses that have a wide range of products, as it helps them create topics based on products. Additionally, you can add the topics that represent the entire brand or organization.

Use case 

Jerold is the owner of the online store "www.jeroldstores.com". He sells Televisions, Mobiles Devices, and Computers in his store. His email campaigns are based on latest market trends, hot sellers, and monthly offers for each category of products he sells in his store. The hierarchy for jeroldstores is:

Brand - Product -Topic

If you are looking to handle only topics and no products or brands, you can take a look at the Brand - Topic hierarchy.