Important Parts

Product

Products in Shopify is where all the products on your store are managed. This is an important area for sellers to add, edit, organize, and control inventory.

Online Store

Online Store in Shopify is where you manage the interface, content, and settings related to your online store. This is an important part to customize your sales website, optimize SEO, and implement marketing strategies.

Click on theme then select 1 theme and click customize, theme configuration screen appears as shown:

Then click on the icon at the end of the left tab bar, here the Personalize Pro App will appear - Click on the switch button to activate it

Then press the Save button in the upper right corner of the screen to save