To integrate Leadexplorer with SuperOffice, you need to make sure the following requirements are met:
Your SuperOffice CRM license needs to be "Sales" or "Complete"
SuperOffice Online only
The SuperOffice user authenticating the integration needs to be an admin
Hint: If you are not admin, you could always let your admin-colleague use his/hers credentials in the SuperOffice login box that appears when integrating.