No, comps cannot be logged into atVenu Register. Comps must be logged into your atVenu.com account on the Counts page.
However, it is possible to process sales with a 100% Discount applied should you need the ability for Sellers to enter $0 sales into atVenu Register.
For more information on enabling Discounts in atVenu Register see:
- How do I set up Discounts for atVenu Register (Artist Account)
- How do I set up Discounts for atVenu Register (Venue/Festival Account)