Changing the status of an invoice If you print out and mail your invoices yourself, you will want to indicate which invoices you've sent to your clients. (OpenAir.com automatically changes the status of emailed invoices from "Not sent" to "Sent.") There may also be circumstances, such as returned mail, that may require you to change an invoice's status from "Sent" to "Not sent." To change the status of an individual invoice: 1. Click on the "Invoices" tab. 2. Click on the number of the invoice whose status you want to change. 3. Click on the "Edit" tab. 4. Click on the "Sent" button to indicate that the invoice has been sent. (Or, conversely, click on "Not sent.") 5. Click on "Save." To change the status of multiple invoices at once: 1. Click on the "Invoices" tab and the appropriate sub-tab. 2. Check the box nex to all invoices whose status you want to change. 3. Click the circle arrow icon at the top of the column to open the "Actions" dialog box. 4. Check the appropriate radio button and click "OK". Note: You cannot make any changes to invoices that have been paid. How would I apply a payment to an invoice?