MS Dynamics 365 environment in maintenance mode:

To move D365 F&O environment in maintenance mode:

Below are few steps to move D365 F&O environment in "Maintenance mode".

1.       User should have “Maintenance mode user” role in AX.

2.       Open Command prompt as Adminstrator and execute below command
Command: J:\AosService\PackagesLocalDirectory\Bin\Microsoft.Dynamics.AX.Deployment.Setup.exe --metadatadir J:\AosService\PackagesLocalDirectory --bindir J:\AosService\PackagesLocalDirectory\Bin --sqlserver . --sqldatabase axdb --sqluser axdbadmin --sqlpwd ********* --setupmode maintenancemode --isinmaintenancemode false

  Pass = true, to make environment in maintenance mode.

  Restart AOS service from LCS.

  3.       To make environment out of maintenance mode pass = false.

Then restart AOS service from LCS.

Put environment in Maintenance mode using SQL server:

1. Open Sql Server Management Studio in the AX VM

2. Expend AXDB database

3. Either execute the following command, update SQLSYSTEMVARIABLES SET VALUE = 1 where PARM = 'CONFIGURATIONMODE'

or 

Edit the table directly as below:

1. Restart the Service Fabric service against all AOSs Node

In case if you face any issue, please feel free to reach me at my personal email, I would be happy to get your queries on "daxmanish@outlook.com".

Enjoy :)