What you’re seeing
- Meetings visible in Outlook on the computer do not appear in the Outlook app on iPhone or Android.
- Some calendars, such as shared or delegated ones, are missing from the phone entirely.
- New invitations appear on the phone hours later or not at all.
- Recurring meetings show on the computer but only some occurrences appear on the phone.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The calendar in question is a shared or secondary calendar that has not been added to the mobile app.
- Calendars stored in a local PST file or another account on the computer do not sync to the cloud.
- The Outlook mobile app has a stale cache or a sync issue with Exchange Online.
- Battery saver or background app restrictions on the phone stop the app from syncing.
- Intune app protection policies or Conditional Access restrict calendar sync on the device.
Why it matters
When calendars are wrong on the phone, people miss meetings, show up at the wrong time or double-book clients. Field staff, sales teams and owners who live on their phones depend on mobile calendars more than desktop ones. A missed client appointment can cost a deal or damage a relationship, and internal meetings start late while people check their computers. The uncertainty also leads staff to keep separate personal calendars, splitting information further.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Why does the computer show events the phone doesn't?
The computer may be showing calendars that are stored locally or in another account, which the phone cannot see. Shared calendars also need to be added separately on mobile.
Is this a phone problem or a Microsoft 365 problem?
It can be either, so the first step is finding where the event actually lives and why it is not syncing.
Can you fix this remotely?
Yes, a certified US engineer can review the account and calendar setup in a remote secure session, and you pay only when resolved.