How do I change or add a service date on my invoices since the last update

Hi @wgray1, 

You can enable the service date option in Customization settings to easily add or edit it on invoices.

Here's how:

1. Go to +Create then Invoice.
2. In the upper right, click Manage.
3. Select Customization.
4. Turn on the Service date.

You can also refer to this article to know more about customizing sales forms in QBO: Customise invoices, quotes, and sales receipts in QuickBooks Online.

If you have any further questions, don't hesitate to reply.