I tried to link on the settings tab -> KNOWLEDGE BASE -> Confluence KB -> Configure a Confluence knowledge base -> Link to a knowledge base and then I got this error:
What could be the reason?
Based on the message you're receiving I suspect you might not have 2 legged oauth enabled in JIRA. Check through the following portion of our article on linking ServiceDesk and Confluence as a reference
David Di Blasio | Atlassian Support
In the past, Portfolio for Jira required a high degree of detail–foresight that was unrealistic for many businesses to have–in order to produce a reliable long-term roadmap. We're tur...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs