I received a brand new macbook pro a few days ago. I have logged in to the app store with my own Apple ID but I am unable to update the built-in applications: Pages, Numbers, Keynote etc.
The error is:
This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or cancelled.
I have done a bit of research about this, but these apps came with my machine. It's not possible they were purchased with another Apple ID as this came straight from ordering online at Apple.com and came in a sealed box.
Best Answer
Sometimes when you log in with new device the App Store gets bit confused.
Go to you Account in App Store and verify it showing the right device.