I haven’t worked with SAP directly, but did infra support for a company that used it.
They were always having issues with it and the company they used for SAP support would routinely bill them obscene amounts even for simple tasks like updating file paths.
Yeah, fucking Business Objects was the bane of my existence. The worst situations were where the creator of the report used their shitty GUI joins instead of actually writing a SQL load script. It made troubleshooting that much more annoying.
Their GUI is so bad. You had to have lookup tables printed out with various codes to find anything instead of, you know, being able to search for them.
I've used a lot of software in my life and this one is by far the worst.
That was one of two that came to mind(a long with Oracle's Peoplesoft). I was an HR department of one, no training, no documentation, no one who knew how it should work for HR. I often cited it, along with Peoplesoft for the explosion of solutions HR has experienced in the last 15 years.