Hope I never have to use it again!
I've used Concur at two of my previous companies for over 15 years in total, up until January 2022. It takes SO LONG to get anything done, building a report is just far too complex, even with all my experience using the tool each month.
I still would regularly get misreads and errors when attempting to upload photos. To save time, I and most of my colleagues preferred emailing pictures of our receipts to the HR team, with a small Excel table summarising the reasons behind our spending, and they would input the expenses to the platform. This was much quicker for the employees, although meant we would only get reimbursed every few months once we found time to build a report. I'm sure it wasn't a lot of fun for HR to spend their time on!
Seems Concur was a great option a few decades ago, but clearly technology (and especially mobile apps) have progressed significantly over the past few years. Sadly it seems SAP no longer want to invest in Concur to keep up with more modern solutions.