Enable RMS in SharePoint 2013 Online using Azure RMS

We have to enable RMS for a document in SharePoint Online. First when we go to the Library settings there is no section called "Information Rights Management".

We have to enable it using Admin Center.

Click Rights Management in the left panel

activate RMS.

Once activated, go to the Library Settings

we can see new section called, "Information Rights Management"

We can set new "Policy Name" and "Description"

Once saved the RMS, when use opens the document it is assigned to RMS.

we can set the document library to "not to open in browser"

when user opens the document, it will be displayed the message.

It will inform the user regarding the RMS settings.

though User download the document, it will be prompt the credentials.