Invoices
After creating an invoice, its status changes to Pending. If the invoice is canceled or paid by the client, it should be assigned the appropriate status.
All invoices in Paid or Canceled status cannot be modified and are read-only.
Invoice items
This section displays all payments included in a specific invoice.
While the invoice is in Pending status, you can add additional payments to it.
Billing
In this section you can create invoices.
To generate an invoice, the user should first select the desired period and, within one client, mark all items that should be included in the new invoice. Then press the "Generate invoice" button, after which a new invoice will be generated.
To generate a new invoice, only those payment items are available that have not yet been included in previously created invoices for the same or overlapping period.