I have created custom fields under organization and users first. This then shows on the example CSV form when you export.
Question 1: Does the CSV export always show you live data or is there a limit?
I created some users through GUI interface to view how an organization is connected to users/customers when I do export.
Question 2: On my review it looks like User/Customers are connected to organization through the Members field?
Screenshot Organization Example:
Question 3 If I added User5@example.com to member field and did a import would a user get created? /
Screenshot User Example:
Question 4 If I added Organisation 02 to organization field and did a import would a new organization get created?
Reviewing this I think you are better importing the users first before importing organizations? (or it might not matter at all)
Question 5 What the recommended order/method of importing Users & Organizations.
Thanks for taking the time in reading this post.
Referance Links:
Import CSV User
Import CSV Organization