How do Vendor Credits sync from Knowify to QB

When you create a bill for a negative amount, it will sync to QB as a vendor credit

When the vendor credit syncs to QB it will show in the transactions list along with any other bills, expenses, payments:

You can then use the vendor credit to apply on a payment to open bills for the same vendor:

The amount applied as a payment to bills for that vendor will be deducted from the vendor credit balance where it can be used to pay down other expenses from the vendor: