The two systems you have are separate distinct installations of JIRA. They don't share anything.
If one of you were on a Server installation of JIRA, then there are some options around mirroring a project (it would be duplicated in both systems and updated by both), but I'm not aware of any Connect add-ons or a method to connect two Cloud systems so that they can do that.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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