I am not able to export from SalesIntel to Hubspot, it says I didn’t have permission to do so. Why?

If you are facing following mentioned (screenshot) integration error while exporting contacts from SalesIntel to Hubspot, then it is actually related to permissions. When you go to Settings > Users & Teams, you should be able to see all individual user permissions. There, using this guide you can verify that they have the right permissions for integrations https://knowledge.hubspot.com/settings/hubspot-user-permissions-guide