We are committed to finding a solution that works for you, @bdesilva4.
I can see that you have a complex billing scenario that may require the expertise of an accountant to ensure proper handling of your accounting software. I would recommend reaching out to an accountant who is well-equipped to help you account for the underage time. They can provide tailored advice and guidance to ensure accurate and compliant accounting practices for your support agreements.
If you're not affiliated with one, you can visit this link: Find an Accountant.
I'm adding these articles to learn more about handling invoice payments:
Know that you’re always welcome to post a reply in this thread if you have any follow-up questions about managing invoices in QuickBooks. The Community team is here to help and back you up.
