This is important. If you've been an auditor long enough, you've pushed back on a request for additional documentation. How you push back is also important. No one wants to work with an auditor who's a jerk and just says 'No' with no explanation.
You have to be willing to explain why you don't want to provide further documentation. Sometimes, it will feel like you're falling down a rabbit hole, so take care with this.
"I had some external auditors requesting documentation that was ruled out of scope in the previous quarter. I pushed back and told them that due to the previous conversation, which was recorded, the documentation had no bearing on the audit and was ruled out of scope and unnecessary. They conceded the point and dropped the matter."
"I've had no professional experience with this, but in my college job working in the admissions department, we had this really nosy supervisor. She wanted to know every student's financial status even if she didn't work on their admission. I refused to let her see my admissions files one day because she had no reason to view them and she got her boss involved. When her boss talked to me, I explained my push back and the matter was dropped. She was transferred shortly after that because of her snooping."
"This happens all the time. One time, a manager asked for additional documentation for a process flow that they owned. He should have already had the process flow but he didn't want to put it together. I told him we just followed the process; we weren't responsible for putting together the process flow for the auditors. It was his job to put it together and submit it to us. He was upset, but eventually did his job and it all worked out."