Marking an Invoice as "Paid" is an easy process. I have created the following information to guide you through the process.
1. Click on the Invoice number you want to "Mark as Paid"
2. Go to the bottom of the Invoice and click on "Add Payment"
3. Choose to "Add a New Payment" or you can "Search for an Existing Payment"
A. Add New Payment, Enter the "Date Received, Description, and Amount"
B. Click "Search for an Existing Payment". Mark the box next to the payment or enter the name in the search box you are looking for, then Mark the box next to the payment.
4. Go to the bottom of the paid and click "Link Payments"
5. Invoice will show "Paid".