Make Shopify compatible with custom fields#692

I have a field that is custom image field that the customer uploads when they order my product, so making Shopify compatible with custom fields would be useful

Good news, this is already available in the Shopify connector. Customer-supplied custom fields entered at order time (including a reference/URL for an uploaded image) land on each order’s line items as Shopify line-item customAttributes, which we expose as the field Line Item Properties (id: line_item__properties) in the orders table. Add line_item__properties to your query and your custom image field will appear there (as the uploaded file’s URL, since a data connector returns the reference rather than the binary). If you also use merchant-defined custom fields, those are available via the Order Metafield fields (order_metafield_key, order_metafield_value, and related) in the same orders table.