Grouped products are similar to bundled products just that in Grouped Products, a similar set of related products are added to the group and each of them is individually priced.
These individual products are referred to as Child Products in WooCommerce.
Go to Products > Add Product.
Choose the “Grouped Product” option from the Product Data column.
Fill in the rest of the Product details and hit Publish.
A grouped product is a collection of Child products, so a child product needs to be added and linked to a group.
Go to Products > Add Product.
Choose Simple Product from the dropdown.
Go to the linked products tab.
In the Grouping dropdown, select the Group you just created.
< Setting up Variations for Products Woocommerce Membership >