Thanks for the quick reply, @JPNG08.

I can see that having this feature is a great part and can help your business needs. You can sign the Approved by and Date by printing the PO form. However, if you will email, you're unable to sign the form.  Rest assured, I'll take note of this behalf and send feedback to our Product Engineers. So this will be considered in the future product enhancement.

We listen to customers’ ideas and suggestions as it contributes significantly to developing product enhancements. You can always visit the QuickBooks Blog site to check the latest feature added to the application.

Don't hesitate to add a comment below if you have another concern. I'm always here to help. Have a great day.