I was once involved in a purchase for SonarQube for a bigger company (around 50-200 developers using it). It was just a horrible experience. My task was just to evaluate the software in a smaller team, get some evaluation licenses and write a report what our experience was.

It was a crazy ride, I got a sales person assigned, and this person kept asking me questions I couldn't answer. I kept telling them what my job was, and if my report would be positive they might be able to sell 50-200 developer licenses. But they kept pushing me to answer business questions I couldn't answer. It's not my job to know that stuff, and I wasn't allowed to share information about company internals to a third party.

In the end our team never completed that report, and I just put this sales person into all my block lists. Never heard from them again ;)

I was never really sure if they were scared we would abuse an evaluation license, but it was a reputable company (nothing shady at all, no US sanctions, nothing). Even if they had no idea about the market we were in, just reading the Wikipedia article about the company would've shown them, that this is someone they would probably like to be in business with.