How do I prevent Microsoft Outlook contacts from merging with iCloud contacts?

How can I stop Microsoft outlook contacts showing/merging into my icloud contacts? I delete them and then they come back. Very frustrating and time wasting to have them just re-appear again after I've deleted them.



[Re-Titled by Moderator]

Original Title: iCoud and Microsoft contacts

iPhone 13 Pro, iOS 26

Posted on Jan 2, 2026 5:12 PM

Reply
Question marked as Top-ranking reply

Posted on Jan 3, 2026 6:45 AM

To ensure that Outlook for iOS has no ability to interact with other contacts on the phone:

Settings > Apps > Outlook > Contacts > None


If you have your Microsoft email account configured to display in Contacts, disable that:

Settings > Apps > Contacts > Contacts Accounts > touch your Microsoft account > Disable Contacts


Then, clean up any contacts that you don't want and they should not re-appear.

1 reply
Question marked as Top-ranking reply

Jan 3, 2026 6:45 AM in response to PLP48

To ensure that Outlook for iOS has no ability to interact with other contacts on the phone:

Settings > Apps > Outlook > Contacts > None


If you have your Microsoft email account configured to display in Contacts, disable that:

Settings > Apps > Contacts > Contacts Accounts > touch your Microsoft account > Disable Contacts


Then, clean up any contacts that you don't want and they should not re-appear.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

How do I prevent Microsoft Outlook contacts from merging with iCloud contacts?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.