I am having trouble having two pages open at a time. It wont let me open my schedule and build an invoice at the same time.

Thank you for reaching out, Desiree.
 

QuickBooks Online (QBO) works optimally within a single browser tab, which can make it challenging to view two pages at once. However, you can work around this by duplicating your browser tab or using separate sessions in incognito mode or another browser.  It allows you to access multiple pages simultaneously without interrupting your workflow.
 

Please see the sample screenshot:
 

Please leave us a response if you have other questions or concerns.