I've replicated your concern and I'm able to see the reports and suppliers menu on the QuickBooks mobile application.
To isolate this unexpected behavior, let's ensure to log in as the Company or Master admin of your QBO account. This way, you can access all the info within your company. However, if your the master admin and the issue persist, I'd suggest clearing the cache in your QuickBooks app to refresh the connection.
If you're using an Android device:
Go to the More Options⋮ menu.
Select Settings.
Tap Refresh Data, and then choose Yes.
For iOS:
Go to Help & Feedback at the top menu bar.
Choose Reset App Data. Then Refresh.
Then close and reopen the app to check if that works. If still get the same result, let's uninstall and reinstall the app to start on a clean slate.
Meanwhile, I'll be adding this great Community resource in case you've got other QuickBooks concerns such as setting up payments, managing your income and expenses, running reports, etc. Please refer to this article for more details: Community help articles.
Stay in touch with us if you need further assistance. We're always around to assist you anytime. Have a great day!
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