People today rely on Microsoft Outlook to cherish various benefits. This email client comes with various incredible features to help people manage personal as well as professional emails. But, under some circumstances, Outlook goes through errors like Outlook sync issues which tends to hamper users ’ important piece of work.  

Synchronization always happens at the time updates occur in PST/OST files. Simply, whenever any folder is updated or Outlook sends/receives emails, the Exchange server also gets updated about these changes. In some situations like a large OST file, Outlook fails to synchronize emails, and thus Outlook account fails in receiving/sending emails. So, if you’re the one struggling with such an issue, this blog post will be beneficial for you. We’ve tried to compile the easiest way to tackle Outlook Sync Issues immediately. 

Outlook not Syncing Problems can Occur Due to 

  • A corrupted OST file can throw errors in the synchronization logs.
  • Sometimes, synchronization log issues can occur due to sync taking place at different durations. 
  • Log problems can occur due to server failure. The connection from the exchange server breaks down.  

How to Check Outlook is Syncing or Not

In case you’ve created an Outlook account and you are in suspicion that there is a syncing issue; the first step is to check if Outlook is syncing or not. Follow the below-mentioned steps and implement them to confirm. 

  • Open the Outlook application and sign into it.
  • Click right on the inbox folder and choose its properties. 
  • Now, go to the synchronization tab and browse statistics in the inbox folder.
  • Check for the last sync statistics.

Repeat steps 2, 3, and 4 for sent items, drafts, starred, important, and other folders. If you find there are Outlook Sync Issues, don’t fret. Below we’re going to discuss perfect solutions to help you get rid of this issue.

5 Effortless Ways to Fix Outlook Sync Issues

1. Make Changes in Profile Settings to Sync Outlook 

Changes in profile settings are required to match the items in the webserver folder and offline folder. Here is a to-do step for the same. 

  • Launch Microsoft Outlook Account first.
  • Sign in to your Outlook Account.
  • Go to the File tab and choose Account settings there. 
  • Go inside Outlook Account settings and the hit data files option.
  • Now, check whether your Mailbox account name is set to default or not. If not, set it as default.
  • Then go to the Email tab and then enter into the mailbox.
  • Tap on the Account Name from the mailbox to change it.
  • Hit the change button now.
  • Once you’re done, tick-mark the box saying “use cached exchange mode” and click on the “ok” button. 
  • Save the changes you made recently and click on the “close” button.

Once you’re all done with the above steps, exit from the Account settings and re-open Outlook. Check whether Outlook Sync Issues have been resolved or not. 

2. Empty the Sync Issues/ Local Folders 

For this, you need to make the folder visible first. Here we are providing you easy steps to make the folder visible and clear the folder of sync issues/local folders.

  • Go through these steps to clear the folders, click on the folder list icon. You can find it at the bottom left corner of the app.
  • Now, go under the “All Outlook Items tab” and locate the sync issues folder.
  • Click on the same to open it and then hit the + button again to view sub-folders such as local failures, server failures, and conflicts. 
  • To clear the sync issues folder, select all messages first and delete them altogether. 
  • Now, exit from the app and check whether the Outlook Not Syncing issue has been resolved or not. 

3. Change  “Organize Your Email” Settings

Use the given steps to change your email settings in your Outlook mail account. 

  • Go to the right side of the app.
  • Click on the Settings option.
  • Under settings go to the Accounts option and click on it.
  • Go to the “organize your emails by a thread” option. 
  • Finally, click on deselect. 

4. Reset Windows Microsoft Store Cache 

Follow the steps given below to reset the Microsoft store cache. 

  • Press Windows Logo key + R. This will open the window run dialog box.
  • Move the cursor to the blank field bar and type wsreset.exe. 
  • Click the Enter button then. 
  • You will see a blank command prompt window appear and close in a few seconds.
  • As the window closes, Microsoft automatically gets open and gives a confirmation message that the cache was cleared. 

5. Sync Microsoft Outlook Mail App Licenses

If the above methods didn’t work for you, still don’t lose hope. Try syncing app licenses to fix the problem. Here are some easy steps.

  • Go to the Start screen and click on the store option.
  • Under Microsoft Store, go to the right-hand corner of the screen and click on settings.
  • Hit the “App Updates” option.
  • Now, move forward to the sync licenses option.

This way, your Outlook Mail App Licenses will get synced. 


After implementing the above steps, you’ll get relief from Outlook Sync Issues. Please note; the same above-mentioned steps will work for sync issues in Outlook 2010, 2013, 2016, and other versions. 

If you have any other methods, tricks, or any sorts of queries, feel free to drop them in the comment section below.