FastSpring has the worst UI on this planet. Everything is super confusing. It is a miracle to me how they are successful.
This helped my to find the FastSpring key. Basically it is your Company ID which you can find in your account under “Profile”: What is my FastSpring Key for Adobe Exchange? | FastSpring Classic Documentation
Note: I use springboard.fastspring.com which is the old version (as I learned) which adds to the confusion. I think at that time it was the only option. I try to forget everything related to FastSpring (did I mention that I really hate it…).
