To confirm timing of a purchase with your buyer, you should ensure all of the following are covered EXCEPT:
Verifying when they need to eliminate specific challenges.
Verifying when they need to achieve their goal by.
Verifying all of the positive changes that will occur by hitting your recommended timelines.
Verifying when they need to implement their plan.
https://www.youtube.com/watch?v=dHgmSIt6p2U