Hi @quadlayers:
This is certainly possible using our?Professional extension. This extension includes three new document types: Proforma invoice, Receipt and?Credit note. The last one?will?allow you to create credit notes to your?canceled or partially refunded orders?after creating a refund. See?Creating a refund / credit note.
Please note we follow GAAP (Generally Accepted Accounting Principles) which means that administrative changes should be documented separately. This means that an original invoice should never be modified by a refund. In most countries (at least in the EU) this is even considered fraudulent (and illegal). We have chosen to follow this in both the free and the paid extension.
Please note that if you have further question regarding the Professional extension, you have to contact us at [email protected], since www.ads-software.com does not allow providing support or answer pre-sale questions for paid plugins in these forums.
