What is the difference between Cancelling a bill and Voiding a bill?

CANCELLING: A canceled bill remains recorded in the system but is not processed for payment. Links to purchase orders are retained for audit purposes. A canceled vendor bill is not applied as billed against the purchase order. VOIDING: System will create a Reversing Journal Entry to reverse GL Impact of Bill

We currently don't use the purchase module so in our case there really isn't any practical difference, correct? Both ways remove the GL impact of the bill and cannot be undone.