How do I have three sites in a hub using a hierarchical structure?

Question

Hi.

Im wanting to have three levels of sites connected in the same hub. Site A as the top level hub, Site 2 being beneath that and Site 3 being beneath site 2, but sharing navigation across all so that I can navigate and search for pages and documents from all sites and navigate straight to them no matter which site i am currently on.

I cant seem to get navigation working across all three as intended. I think i am currently making it so that Site 2 and Site 3 are on a level with each other. Which means they wont search for content on the other, only content on Site 1. Site 1 can however find content on both Site 2 and 3.

How do i set up the three levels of sites in the hub?

Answer 1

Per my research, it is not possible to make three sites as a hub hierarchical structure, such as Site A as the top-level hub, Site B being beneath Site A and Site C being beneath Site B.

Currently, we only can make Site B and Site C associated with hub Site A.

In the hub site A, go to Site Settings -> Hub Site Settings -> Enable Global Navigation. From here, you can configure the navigation to show links to Site B, Site C, and other sites or content you want to highlight.

Hub Site A provide a unified search across all associated sites, meaning that when you search from any of the sites (Site B or Site C), it will search content across the entire hub.

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Answer 2

Alternatively, you can use Global Navigation: https://learn.microsoft.com/en-us/viva/connections/sharepoint-app-bar

Answer 3

Hi

Navigation inheritance in SharePoint only works between a hub site and its associated sites, not from hub to hub. We encountered the same issue in the past and resolved it using a Power Automate flow that copies navigation items from the Home Hub to the other hubs. The associated sites of those hubs then inherit the navigation.

Reference: https://learn.microsoft.com/en-us/sharepoint/hub-to-hub-association