How do I find out my Build number?
1 Log in to the O365 Manager Plus web client, and click the "License" link in the top pane.
2 You will find the "Build" number mentioned below the "Product Version"

O365 Manager Plus Service Pack

If your Build Number is	Upgrade to Build Number
4300 through 4319	Download and upgrade to latest 4320
4200 through 4222	Download and upgrade to 4300
4100 through 4119	Download and upgrade to 4200
4002 through 4014	Download and upgrade to 4100

Important:

We strongly recommend you to take backups before migrating. This helps you prevent accidental loss of data.
If you have enabled high availability, please read this before applying the service pack.

Instructions to apply Service Pack

1Shut down O365 Manager Plus
- If the product runs as an application, click on Start → All Programs → O365 Manager Plus → Stop O365 Manager Plus.
- If the product runs as a windows service, click on Start → Run → type "services.msc" → Stop "ManageEngine O365 Manager Plus".
2Execute the stopDB.bat file under <O365 Manager Plus>\bin directory.
3Backup O365 Manager Plus by zipping the contents of <O365 Manager Plus> directory.
4In case of MS SQL Database Server, take a backup of the database also.
5Open a Command Prompt as an administrator and execute the UpdateManager.bat file under <O365 Manager Plus>\bin directory.
6Click Browse and select the .ppm file that you have downloaded.
7Click on Install. Depending on the amount of data to be migrated, the installation procedure may take a few minutes. Please do not terminate prematurely.
8Click Close and then Exit to quit Update Manager tool.
9Start O365 Manager Plus.
- If the product runs as an application, click on Start → All Programs → O365 Manager Plus → Start O365 Manager Plus.
- If the product runs as a windows service, click on Start → Run → type "services.msc" → right-click "ManageEngine O365 Manager Plus" → Start

Note:

If you need to apply more than one service pack, follow the same instructions for each installation.
If you have enabled high availability, then follow the steps given below:
1. Shut down both the primary and standby servers.
2. Follow steps (2) through( 8) given above, and apply the service pack in both the servers.
3. Start both the primary and standby servers.

You can contact O365 Manager Plus Support at any time for assistance in upgrading O365 Manager Plus to the latest version.