Comment by NikolaNovak

I believe part of the reason is they completely changed their enterprise resource planning & supply chain software. There were a LOT of changes, and yet not enough - not accounting for Canadian price sensitivity and the distances/warehousing difference.

This is a fascinating read I bookmarked at the time :)

http://www.canadianbusiness.com/the-last-days-of-target-cana...

I believe (but could be wrong) Home Depot did essentially the same thing - used Canadian market as test bed for SAP, except they already had an established stable presence here.