I already left you an answer on Microsoft Learn Q&A.
With the Shopify v2.0 ADF connector you can’t push a WHERE clause anymore but you can call Shopify directly via the REST connector or HTTP and pass a watermark like updated_at_min, then paginate until no Link: … rel="next" remains.
https://shopify.dev/docs/api/admin-rest/latest/resources/customer
https://learn.microsoft.com/en-us/azure/data-factory/connector-rest
Don’t try to force incrementals through the connector since Microsoft explicitly removed query in v2 and you must set tableName and fetch the table as it is. You can instead use REST or GraphQL for filtered pulls instead.
https://learn.microsoft.com/en-us/azure/data-factory/connector-shopify