You can use the following variables:

• [id] - content ID
• [title] - content title
• [categories] - content categories
• [email] - user's email
• [first_name] - user's first name
• [last_name] - user's last name

For the WooCommerce or Easy Digital Downloads Thank You Pages only:

• [order_number] - order number
• [order_subtotal] - order subtotal
• [order_total] - order total
• [currency] - currency