I want to import a number of issues in Jira project from a CSV file, where each epic has a number of stories as children. I understand that I have to use issue ID's for that. But my company's Jira has already a number of issues ID's assigned, somewhere over 15000. My question is if in my CSV file should I start the ID's with 1, 2, 3..., assign the correct parents ID's, then the importer will take care of relocating ID's to first available position or how else can I do that?
Thank you