Hi,
I don't really use SharePoint (or rather, haven't for a few years, and then it was only an internal site that didn't require analytics), but I did find this earlier post:
https://experienceleaguecommunities.adobe.com/t5/adobe-analytics-questions/sharepoint-online-and-ado...
Fundamentally, there must be a way to trigger tracking and identify the elements on the page to support your tagging.. but I do know that SharePoint has gotten rid of SharePoint Designer which is likely where I would have started... but maybe some of your SharePoint Developers would have some suggestions for you?
