Problem updating to iphoto 9.6 after upgrading to Yoesmite I am getting the following message when I try top date iPhoto This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or canc
"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." ?
This error message will appear erraneously, if you skipped the update to Mavericks and iPhoto 9.5.1 and went straight from an earlier MacOS X version to Yosemite, without first updating to iPhoto 9.5.1 and associating iPhoto to your AppleID.
Try first to buy iPhoto with your AppleID instead of updating. Delete iPhoto from Applications, but don't empty the Trash, then go to the main page of the App Store and search for iPhoto. If you are lucky, it will show as free and you can buy it directly.
If iPhoto is not showing as free, there is no help but contacting the App Store Support: Ask for a redemption code. You will need to provide a prove of purchase for your mac with iPhoto preinstalled.