Move issues from next-gen to classic project

Bogdan Babich

I'm trying to migrate data from next-gen to classic and when exported .csv from next-gen and then import it to classic, i've faced with issue that epics doesn't include the tasks/stories. The same story with sub-tasks, they are imported as separate issues.
There's an option to move issues from next-gen to classic, but I'm not sure that the same situation with Epics and sub-tasks will not appear.Will be?
May be I'm configuring import in csv not in right way, I've tried different fields mappings.
Any suggestions on configuration or approach?

Zoryana Bohutska _SaaSJet_

Also, here was the simular request https://community.atlassian.com/t5/Next-gen-questions/How-to-move-issues-from-next-gen-project-to-classical-project-is/qaq-p/1277229