1. What happens if the visitor refreshes the page? Will it cause a duplicate pixel trigger?

    1. Answer: The pixel will not duplicate if the visitor refreshes the page. The action is now a page refresh, not a purchase completion. 

  2. Is there a way to single out the confirmation for a specific product, say a particular exhibition ticket?

    1. Answer: Create a trigger using the the custom event with the name 'Product'. Use the 'Some Custom Events' in the Trigger Configuration and select based on the criteria you want.

  3. Is the eventID the identifier for the product? e.g. eventId=5b186f8368d6093324a422bd

    1. Answer: Refer to the mappings for the tag manager.