The end of Basic authentication for M365 - October 1, 2022

Last update:
Created :
Written by Support InfoBridge

Microsoft's Exchange Online, also known as Microsoft 365 or formerly as Office 365, has announced that on October 1, 2022, the feature called Basic Authentication will be permanently disabled. Since our on-site synchronization products -called Exchange Online Synchronizer and Exchange Synchronizer- were based on this feature, some of our customers are still using a setup where this feature is used. 

Read more on Microsoft's announcement and the reason behind the decision on Microsoft Tech Community.

Please note that this change does not apply to Microsoft Exchange On-premises.


If you did not already update your Exchange Online Synchronizer setup to use OAuth instead of Basic Authentication, please make sure you do this before October 1, 2022. If you don't update, your calendar synchronization will stop after that date.


As an alternative, there is also the option to migrate to the cloud version of the product: Synchronizer for SuperOffice. We will officially launch this product feature in May 2022. More details can be found on our Synchronizer Knowledge Base.

The advantage of migrating to the cloud version of the calendar synchronization platform is that you would not need to do another migration once you migrate SuperOffice Onsite to SuperOffice Online.