The company that I work for, had been using Jira Software/Core as their Ticketing System since 2007 with customers all over the globe. 1 Customer = 1 Jira Project, 178 projects and 42.294 issues created
Now, we want to migrate from Jira Software/Core to Jira Service Desk (instance that already exists within the company, but used only internally) and it turns out, that we would like to keep all the issues data from the Jira Software into the JSD instance.
I do not know that much of JSD features, but I could imagine something like, 1 Jira project could became a JSD Organization(?)
However, we (me and the IT guys in the company) are not sure if a data migration like this is possible.
Do you know any similar case? or a magic plugging especially for this kind of migration?
Looking forward any help 
Oriana