How to merge data from two JIRA instance?

[Jirong Hu]

We have an JIRA_A (v6.4) instance and JIRA_B (v6.3) instance, one requirement is to merge the data in the JIRA_A to the JIRA_B. What's the best approach to do this?

Thanks

Jirong

[Marc]

You can export all issues from JIRA_A and use the External System Import under the System menu to import them to JIRA_B.

Importing issues from JIRA to JIRA is easier than a third party system to JIRA as all the fields should map nicely if they are configured the same.

https://confluence.atlassian.com/cloud/importing-issues-692420684.html

[Gabrielle Bautista [ACP-JA]]

What do you mean by "Merge"? Why don't you just use one instance of JIRA and retire the old one?

[Jirong Hu]

It's related to this post:https://answers.atlassian.com/questions/30947751/how-to-access-issues-in-jira-instance-a-from-instance-b. The user wants to access the data in the instance A from the instance B.