Forum Discussion
Error with Managed Meta Navigation
Managed Naviagtion isn't support across multiple site collections. When you apply the same navigation to multiple site collection you will get a warning and break it in the first site collection!
If you need Managed Nav across site collections then the solution you should use is this one:
https://blog.mastykarz.nl/building-global-navigation-sharepoint-2013/
You can have multiple naviagtion term set and apply each term set to a single site colelction. Rather than Waldek's solution this is quite a common way of managing the short comings of Managed Navigation
So if you had 4 site collections and 4 identical copies of a gloabl navigation termset. Then you could apply one term set to each site collection. This is however a bit painful as you would have to ensure somehow that the 4 termset remain the identical.