"When helping our friends at a fintech startup, we saw that while they had spent weeks building an admin panel from scratch, their accountants seldom used it."
It sounds like your friends didn't talk to the accountants to ask them what they wanted.
It sounds like your friends didn't talk to the accountants to ask them what they wanted.
At that particular company, the accountants would often come across new tax form data they'd need to track. Waiting on eng to migrate the DB was too slow.