It's good to hear from you today, CISPA-Finance.
Yes, you can add additional information to your vendor profile. You can use the Notes or Other fields to enter the details.
To help you manage your expenses in QuickBooks Desktop, check this write-up: Expenses and vendors. This will provide you links on how your expense transactions work in QuickBooks.
I'm always here should you have any follow-up questions or concerns. Wishing you and your business continued success!