Where the costly misreads happen
Vendors get assessed the way a bank assesses anything: financial model, security posture, compliance, references, roadmap. All necessary. None of it especially predictive of adoption.
So a partnership is signed on a strong business case, and some months later the volumes aren't there. Suppliers were never onboarded. The integration needed work nobody scoped. The treasurer liked it; the people processing the transactions carried on as before.
The finance expertise in the room is rarely the gap. The gap is someone who has run a procurement function and can say, before you commit, whether this will be used or worked around.
That's the perspective I add - as an independent read, not as an intermediary for anyone selling to you.