How to create a bill with a preferred vendor?

To Add a Vendor:

Go to the "Contacts" tab or the "Vendors" section under the "Payables" tab.
Click on "+Contact" to access the option for "Create Vendor."
In the "Create Vendor" interface, input all necessary details.
Press "Continue" to save the vendor information.

Note: Bank details can be entered during this process or added later.