To utilize product data of items in the Apparel and Accessories category, Google Merchant Center requires complete Color and Size information of your products. With ShopBase, products without Color/Size details can be automatically added when you create a Google product feed.
In this section, we will help you understand the default color and default size for a Google product feed.
Step by Step Tutorial
From your ShopBase admin site, go to Products > Product feeds and select your Google product feed.

In Google product category, choose Apparel & Accessories. Then fill in the respective boxes below with default colors and sizes.

Click Save
Default Color and Default Size will only be added to products without such data. Values of any item or variant with complete Color and Size data will be kept unchanged.