So according to this article https://help.zoho.com/portal/en/kb/projects/settings-in-zoho-projects/import-data/articles/import-jira-projects#Prerequisite  the Import Jira feature in Zoho Projects is not available to Zoho One users. 

So how are we meant to sync Jira projects with Zoho Projects if we are a Zoho One user?

Any advice gratefully received 

Alex