SharePoint Online Global Navigation Levels

Question

I'm using Term Store for use with Managed Metadata. I have four levels of navigation. On a modern page the navigation shows all levels from the term store, but on a classic page (which there are quite of few of) only shows 3 levels. Note the differences between the two below. Can someone clarify - is this just the way it works when using a classic page in SPO? It's not some sort of configuration setting I'm missing right? Thanks.

Modern page

IT
  Enterprise Systems
    BI/DBA
      SharePoint
      Site360

Classic page

IT
  Enterprise Systems
    BI/DBA

Answer 1

Yes, classic pages supports term navigation upto 2 levels only so definitely you are not missing any configurations here.

The only possible way I know to allow Navigation for more than 2 levels is customizing the Master Page by following the below steps:

• In SharePoint site, find out which master your site is using. In the site, go to Site Settings, then choose master page under look and feel section. Check which master page is selected in each drop down.
• Open SharePoint designer, navigate to Master Pages and select the used master page from step 1.
• Click edit file and find the maximumdynamicdisplaylevels value and change the number to as per your requirement.
• Save the file, refresh the browser and see if you get other levels of terms in navigation.

I hope this helps.