Adding Shopify properties to your Shopify Flow connectors makes your custom-built triggers more powerful since the conditions and actions paired with them will have access to the related resources. Additionally, when a Shopify property is included in a trigger, it also enables related Shopify actions for that trigger (for example, the customer property enables the “Add customer tags” action).
Note: Shopify properties are available only to new Shopify Flow connectors. If want to add them to a connector that you've already created for your app, then contact firstname.lastname@example.org.
Where can I learn more?
Read the documentation about this update.