You can configure invoice editing options in the print template configuration used by Invoice Editor to allow deleting services and work orders, changing service amount, quantity, hours, etc.
On the Company tab, click Print Template Configurations, and then click the default configuration in the Invoices section.
On the Settings tab, click the Edit Options tab, and then select the check box next to the appropriate options.
Tip If you don’t want Back Office users to edit some vehicle information, click the Edit link next to the Editable Columns option, drag the appropriate tags from Editable Columns to Not Editable Columns, and then click Save.