Hi,
Thank you for sharing your question. I know how unsettling it is when messages appear on one device but not on another, especially when an entire date range disappears. The good news is that because the emails still show up on your Chromebook, Microsoft confirms that the messages still exist in your mailbox; the issue is that your iPad’s Outlook app is not syncing or displaying them correctly.
This usually happens when Outlook for iOS is filtering messages, has Focused Inbox hiding items, or the app has incomplete sync data stored on the device. Microsoft recommends checking for filters at the top of the message list, switching between Focused and Other, and checking folders like Deleted Items, Junk, or Archive in case the emails were moved by rules or another client. If the messages are not visible in these folders, signing into Outlook on the web and checking Deleted Items → Recover items deleted from this folder can sometimes bring back older emails, and anything restored will sync across all devices including iPad.
If the emails still do not appear, Microsoft advises removing the email account from Outlook on the iPad and adding it again so the app performs a full resync. This refreshes the mailbox and typically resolves any missing‑date‑range issues on mobile devices. If none of these steps work, the next step would be to reset the account in the app or reinstall Outlook, which forces a full mailbox rebuild and often restores missing mail.
To help you further, may I ask whether you are using the Outlook app or the built‑in Apple Mail app on your iPad? Once I know that, I can guide you through the exact steps for your setup. I’m here to help you get all your emails showing again.
I hope this helps.
Best Regards,
Noel