Use the Synchronizer in mixed mode (OAuth and Basic authentication)

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Overview

For O365/Exchange Online customers who want to start using the new Synchronizer with OAuth but do not want to move all users in 1 go, the Synchronizer can be used in a mixed mode. Using the Sync in mixed mode, both in Basic Authentication and OAuth gives you the change to move the users in smaller parts.

How to

The Synchronizer (from version 3.2.314 and newer) is made to run both in Basic Authentication and OAuth mode. In which mode it will run can be set by using a specific startup parameter in the Synchronizer.

To be able to use the mixed mode you also need at least 2 InfoBridge Synchronizer Services.

Step 1

Download and Install the latest Synchronizer which supports the mixed mode. (from version 3.2.314 and newer)

Step 2

Create two shortcuts for the Synchronizer Admin.

Shortcut 1 points to the Sync admin running in Basic Authentication mode and the start command should look like this

"C:\Program Files (x86)\InfoBridge\Exchange Online Synchronizer\InfoBridge Synchronizer Administrator.exe" /DC

Shortcut 2 points to the Sync admin running in OAuth Authentication mode and the start command should look like this

"C:\Program Files (x86)\InfoBridge\Exchange Online Synchronizer\InfoBridge Synchronizer Administrator.exe" /DC /ET

Step 3

Create an extra service which will process the users running in OAuth mode

During the installation of the Exchange Online Synchronizer one service is installed.

To create another Service copy the file ‘Install Extra Service.cmd’ from the Prerequisites folder to the Exchange Online Synchronizer folder and run the command file to create another service.

After the extra service is created, a new parameter needs to be added to the service in the registry.
In the registry go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

Select the InfoBridge Synchronizer Service and open the ImagePath.
In the Value Data field add the parameter /ET

mceclip0.png 

NOTE There are more options to create the extra Services, more info

Step 4

At the moment you have all users in the Synchronizer admin running in Basic Authentication mode. You want to run the sync in mixed mode, this means you need to convert some users to the new OAuth mode in the Synchronizer. How to do this is described in this article

Step 5

You are now ready to start both Services. Both groups of users will be processed by the 2 services. 

Summary

You have now configured the Synchronizer to run in mixed mode. Both synchronizing the group of users running in Basic Authentication and in OAuth authentication. This setup gives you opportunity to move the users towards the new OAuth Synchronizer in smaller groups. Remember that the users need to clean their calendars to avoid duplicates, so for administrators with a synchronizer with many linked users it might be better to control the conversion of smaller groups of users.