Peachtree 2011 Question pertaining to a credit on a customer account

SOLVED

Hello,

I would like to know if there are different results when a credit to a customer account is created by generating a new sales/invoice with a negative quantity & negative amount as the invoice amount vs creating an actual credit memo as per the typical way to credit in accounting (at least in my way of understanding credit memo's)?

I believe there to be at the very least differences in specific report amounts as I have found but are there any differences as far as under or overstating Income, Balance Sheet and /or Sales & Use Taxes at all?

Thank You so very much for any quick help you can provide!

Shawna