Is the pain real?
Before testing whether people like your solution, check that the problem is frequent, painful, and already costing them.
How often?
Daily or weekly pain beats a once-a-year annoyance.
How painful?
Does it cost them money, time, customers or sleep?
Already solving it?
Workarounds and spend prove the pain is real.
Does it matter to us?
Would solving it move one of our key outcomes?
Prove the pain, then pitch the cure.