Menu: Invoice and Expense, then Manage Invoice.

The heading is Manage Invoices. The counters show invoices, open, partial, due, and paid. Create Invoice goes back to the create page.

Filter by class, student, session, status, or an invoice code. Status can be Open (due above 0), Unpaid, Partial, Paid, or All. Open is the default. Reset clears the filter.

Each row shows the student, invoice, gross amount, discount, net amount, due amount, date, and a status of Paid, Partial Payment, or Unpaid.

Accept Payment appears when money is still due. Enter the amount to pay now, the method, and the date, then click Accept Payment. Method is Card, Cash, or Cheque.

Edit changes the invoice. View opens it. Delete asks you to confirm with the student name and invoice number, and only when nothing has been paid. The note on the page says only unpaid invoices can be deleted.