Dear Kristina Martinez,
Good day! Thank you for posting to Microsoft Community. We are happy to help you!
I'm sorry to hear that you're having trouble with Microsoft Teams on your iPhone. We received many threads on this issue and we already reported to Microsoft for further investigation; In the meanwhile we can try some basic troubleshooting steps to makes sure everything is fine on your end:
- Is it the work/school account affected right! or its teams personal account having issue.
- Secondly could you please share with us the full error detail you get when you try to login your teams on the iPhone please, it will help us narrow down the issue.
- May I know if you are able to log into teams on a desktop or laptop browser at https://teams.microsoft.com/? Just to make sure there's no issue with the account itself.
If you notice you can access teams via browser on your iPhone, then the issue could be with your Teams app.
- Sometimes a simple restart can fix the problem. Press and hold the power button until the “slide to power off” slider appears. Slide it to turn off your iPhone, wait a few seconds, then turn it back on.
- Have you tried Offloading the App? This can help clear the app's cache without deleting your data. Go to Settings > General > iPhone Storage. Find the Teams app and tap on it, then select Offload App. After that, reinstall the app. See Teams not working on iPhone | Microsoft Community Hub. If offloading doesn't work, try deleting the app completely and reinstalling it from the App Store.
- Have you checked to ensure that both your iOS and the Teams app are up to date. Go to the App Store and check if there's an update available for Teams.
- Have you checked to make sure Teams has the necessary permissions. Go to Settings > Teams and ensure all relevant permissions are enabled.
- If your iPhone is managed by your organization's IT department, they might have specific settings or restrictions in place. It's a good idea to reach out to them for assistance.
We will be on standby for your update to further assist if issue persist. Please let us know and we can explore other options. Please note that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can find a solution together. Thank you for your help.