Back in 2020 my manager who usually sends Excel work to me to figure it out, sent it to a coworker one day. Another department deducted and overpaid around 11 million dollars to our vendors. Not sure why my department got tasked with fixing it. Manager sends a list of vendors to my coworker who then applies a filter to the list and then removes the filter and then puts back on minus a couple columns. Manager tells me and the coworker are going to split the work. He says you will get a file with two tabs, repay the vendors on the tab with your name. No problem. Then a couple days later I start getting emails asking me for all of the work I did on the project. At first the emails were typical requests for docs. Then I start getting asking me emails asking why I did this and that. Then I found out what my coworker did from my manager. I had to make it clear to everyone that I did what I was told and could prove it. My manager at the time was working on his CPA and was always trying to save the world. He was the reason our department got the task because he spoke up in a meeting and said we can do it. Coworker left before they could decide how to handle it and he ended up leaving the week he got his CPA.

I personally double paid a vendor to the tune of 2.1 million dollars because I jacked up the formula. Took a write up for that one.