In an JAll Ondemand instance,user having admin permissions only in JIRA is not allowed to create project using "External System Import" .

Steps:
1. Login as a admin user having permission to JIRA Application.
2. Press GG and select "External System Import".
3. Try importing a CSV file.

Check the attached screenshot, user is not allowed to create project as earlier user needs to have access to all the products for creating product.