How to prevent duplicates of issues through CSV import?

[Vinit Tiwari]

I am importing issues in jira through CSV file, which is working properly. It is possible that in the CSV file, just one field is updated and the rest issue details are same. And if I import the CSV file, the issue is created again with different issue ID. I want to prevent this from happening and want to just update the value of the existing issue rather than creating a new issue.
How can i apply this?

[Danno]

When you do the import you'll need to have the Issue ID in the first column and then only import the new field value.

[Duc Thang TRAN]

Hello @Vinit Tiwari 

You need to have admin product access  to update existing issue  (Via External system import )

More information via this link (Updating existing issues)

https://confluence.atlassian.com/adminjiraserver/importing-data-from-csv-938847533.html

Best,