I have missing info, transactions, and invoices under certain customers. How do i get that infomation to show on the mobile app.

Hi userjdshephard245,

Welcome to Community!  The QuickBooks Online mobile app is a dynamic way to complete your daily bookkeeping tasks while on-the-go.  I'd be happy to assist!

To ensure the information is showing in your QuickBooks account, I suggest logging in using a web browser.  Once this has been confirmed, I recommend refreshing the app to see your account data.  I you experience the same result, uninstall and then reinstall the QuickBooks Online mobile app.  If the issue persists please contact us outside of Community, so we can work with you directly and ensure you're back to business as soon as possible!

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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If you have any other questions, feel free to reach back out.  We'd be glad to help!