The two dimensions Order tags and Customer tags are now available through Funnel's Shopify connector.
- Order tags:
A comma separated list of tags that have been added to the order. - Customer tags:
A comma separated list of tags that have been added to the customer.
The Order tags dimension has been added to all existing Shopify data sources. The Customer tags dimension however requires the option "Include customer data" to be selected in order for the dimension to be added. 
To learn more about our Shopify connector, check out the What data can I get from Shopify? knowledge base article.