How easy is it to bring multiple companies Jiras together into one and any good merge tools availabl

[Robert Ward]

How easy is it to bring multiple companies Jiras together into one and any good merge tools available to bring multiple businesses Jira into one.

[Marlene Kegel - codefortynine]

If you need to merge issues on a regular basis you can try our Marketplace app "Merge Agent for Jira".

Don't hesitate to get in touch with our support via support@codefortynine.com.

[Joe Pitt]

Not easy at all. Cloud doesn't support it. There is a paid for tool in the marketplace you can use on the server. Below is a link talking about a workaround. The marketplace tool requires all the JIRA instances to be on the same version. 

https://confluence.atlassian.com/jirakb/merge-multiple-instances-of-jira-cloud-779160767.html