Updating a Purchase Order (PO) on your invoice can easily be done in T3. It should be noted that when updating the PO on an invoice, the changes will apply to that particular invoice only, not other invoices tied to the rental order.
From the T3 Fleet web app, select Billing from the left menu.
Select an individual invoice.
In the top right, select Change.
The Add or Edit Purchase Order screen will display. Make your changes and select Save.
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