The ability to track all invoices and payments for our clients. It also allows us to submit change orders at the same time as our invoices. I dislike that we can't see if an invoice has been paid or not until after it is submitted. When I send an email to an invoice owner about an invoice, I get no response even though they're in the system. We've had issues with our internal accounting department not being able to access their own data in the system. We've had other problems with errors when submitting invoices. This needs to be resolved so that we don't lose information and lose client trust. In the past we've used Quicken to keep an external ledger of invoices and payments. We've needed to update this every few months because it was quite old. AvidXchange has enabled us to use this system more.