One or more items in the folder you synced do not match Outlook error

When you find that one or more items in your sync folder do not match the error message in Outlook, it may be because you updated or canceled the meeting item. In this case, you will see an error message saying that your local version of the data conflicts with the remote copy. This situation usually happens in Outlook desktop application.

One or more items in the folder you are syncing do not match. To resolve the conflict, open the projects and try the operation again.

Fix One or more items in synced folders do not match Outlook error

In the desktop version of Outlook, you may encounter problems when local calendar entries conflict with the server copy. Fortunately, though, there are some simple ways to help you solve this problem.

Repair Outlook Data File

Create a new Outlook profile

Clear offline calendar items

Run Outlook in safe mode

Maintenance Office Installation

Using Outlook Web App

Now, let’s take a look at these in detail.

1]Repair Outlook data files

One or more items in your synchronized folders do not match, possibly caused by damaged Outlook data files (.PST and .OST). If this is the case, try running the NTFS repair tool to repair the .PST file. Here's how to use the tool:

Navigate to the following location:

Outlook 2021/19/365: C: Program Files (x86)Microsoft AcrobatrootAcrobat 19

Launch the .EXE file, select Browse for the .pst file you want to scan, and click Start.

If any errors appear in the scan, click Repair to fix them.

Next, follow these steps to repair the .ost file:

Open Outlook and click File.

Click Account Settings, select the account you want to delete, and then click Delete.

Now, add the account and check if the problem persists.

2]Create a new Outlook profile

Sometimes, Outlook user profile can get corrupted and cause multiple errors. Creating a new Outlook profile can help fix errors. Here’s how to do it:

• Open Control Panel and search for Mail.
• Click Mail (Microsoft Outlook) and select Show Profile.
• Click the Add option and follow the on-screen instructions to create a new user profile.

3]Clear offline calendar items

Next, clear the calendar’s offline items. This will cause Outlook to resync the calendar and repopulate the folder with calendar items. Here’s how:

Open Calendar in Outlook, right-click the Calendar folder and select Properties.

Navigate to the General tab, select Clear Offline Items, and click OK.

4]Run Outlook in safe mode

Running Outlook in Safe Mode will launch the application without loading installed add-ins or extensions. Here's what you can do:

• Hold down the Ctrl key and double-click the application icon.
• The prompt will now ask "Do you want to start Outlook in safe mode?" Undisable
• Select your Outlook profile name in the next screen and click OK.
• Outlook will now open in safe mode; check if one or more items in your synchronized folders do not match the error fixed.

5] Repair Office Installation

Next, consider repairing Outlook. This helps users overcome this error. Here’s how:

• Press Windows key I to open Settings and navigate to Apps App Features. >&
• Click on the office product you want to repair here and select Edit.
• Click Repair Online and follow the on-screen instructions.

6]Use Outlook Web App

If none of these suggestions help, try using Outlook Web App. When using the Outlook web application, modifications are made directly on the server where the mailbox is located.

Read: How to prevent Outlook from automatically adding events to my calendar

I hope these suggestions are helpful to you.

How to repair Outlook synchronized folders?

If Outlook is having trouble syncing folders, check your Internet connection and force Outlook to sync manually. If that doesn't help, repair Outlook data files and reconfigure Outlook profile settings.

How to force folder synchronization in Outlook?

Select the folders you want to sync to force the folders to be synchronized manually in Outlook. Here, select Send/Receive on the Outlook ribbon and select Update Folder to sync a single offline folder. However, if you want to synchronize all offline folders, select Send/Receive All Folders.

Read: Outlook PST cannot be found says Office 365.

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