I've read that Target's botched expansion into Canada was largely attributable to SAP being awful. They haven't gone bankrupt, but years later their stock is still reeling.
My understanding was that the land Target used in Canada for their stores was leased to them by Walmart (who happened to own it for some reason, even though most of the lots used to be Zellers stores, and Eatons before that.) Walmart gave them extortionate prices and conditions on their lease.
They essentially choked their nascent competition in the Canadian market out of existence in the very same move that enabled the attempt.
https://www.canadianbusiness.com/the-last-days-of-target-can...
https://news.ycombinator.com/item?id=10956638
The data entered into SAP was riddled with errors, it sounds like a great example of "garbage-in, garbage-out".