Our company uses two Jira cloud instances.
- 'Jira Cloud Instance A' Has a primary confluence link to confluence the that is included in that instance.
- I set up an application link between 'Jira Cloud Instance A' and Confluence in 'Jira Cloud Instance B'
I am able to easily include Jira issues and filters form 'Jira Cloud Instance A' into Confluence pages in 'Jira Cloud Instance B' So the application link is working that way.
However in Jira on 'Cloud Instance A' I don't see any option in to be able to link a Confluence page from 'Jira Cloud Instance B' from within the Jira ticket.

It only lists 'spaces' from the Confluence that is on 'Jira Cloud Instance A'.
Have a missed a configuration step?