You can change the invoice date at the top of the invoice page and the due date in the Payments section.
To change the invoice date:
Select the date and time link to open a dialogue where you can change the invoice date.
To change the due date:
Scroll to the Payments section on the invoice page.
Select the Agreed to pay later checkbox. The due date appears.
Select the due date link to open a dialogue where you can change the due date.
Note
Changing invoice dates and due dates requires specific user permissions. If you need assistance, contact your administrator or manager.