Is there a way to download Costco warehouse transaction history?
It sure does not look like it. But, you might contact Costco Customer Service and ask them.
In the website, it you go to “Orders & Returns” and then click to “In-Warehouse” it shows each of your visits, with date, time, location and cost. Clicking on “View Receipt” allows you to download an itemized receipt. This isn’t something that could easily be imported into Tiller, but it does provide all the information if you’re willing to spend the time processing it…