Metafields

The most advanced, and one of the most powerful attributes are for Shopify metafields. Metafield values may be evaluated by selecting a namespace, metafield key, and condition.

Conditions include:

Is equal to
Is not equal to
Starts with
Ends with
Contains
Does not contain
Is not empty
Is empty
Exists
Does not exist
Is greater than
Is lesser than
Is true
Is false

Additionally, collection sorting may be done with a metafield value in a numeric range.