How do you add a business that you purchase products from? (edited)

@THOMAS CAVANAUGH, thanks for posting your inquiry to the Community!

It sounds like you are looking to track expenses in Quicken Business & Personal. This would be done via transactions, and the Payee would be the business you purchased from. If you need to bill a client for the purchase, you may do so by adding the transaction as a billable expense. The steps to do so can be found here: https://support.simplifi.quicken.com/en/articles/10394294-how-to-bill-a-client-in-quicken-business-personal#h_c0ca696d2f

For more details on how transactions work in general, please see our support article here: https://support.simplifi.quicken.com/en/articles/3348103-managing-transactions-in-quicken-simplifi

Let us know if this information is helpful toward what you are looking to accomplish!