I am using CSOM to access sharepoint objects, and I need unique identifiers for site collections, webs, lists, and list items.

So when you have an object identify for example for a site collection, it will look something like this:


  • 740c6a0b-85e2-48a0-a494-e0f1759d4aa7 - is the web application GUID
  • 7422c68a-06c9-41ca-ac61-b2ea24c0f6b2 - is the site collection GUID
  • 5e4ff74d-4416-4de1-8a68-d4d733e82b00 - is the web GUID

But why is there a prefix of 0569d79e-5569-2024-65bd-6486b22763a8|? What's the point of that? Even more confusing, this prefix is unique every time you request metadata.

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