I want to do a bulk update to a custom field for a set of approx 900 tickets in JIRA service desk (server).
I have two columns in my CSV - "Issue Key" and the custom field.
I attempted to import but it seems I must include "Summary". I put a value in this field for each ticket (just some random text) but this overwrote the summary for each of my tickets. In order to get this to work I have to export the tickets from JIRA into excel first, including the Summary, add the custom field values and then import, so the summary value being updated was the same as the value already on the ticket.
Is there a way of importing where I can have the summary field not updated?
I'm sure there is a simple way to do this but I couldn't seem to find it.