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STEP1. You will need to setup Application Link at Confluence: <base <Jira base url>/plugins/servlet/applinks/listApplicationLinks
The menu is actually located at "Administration" like below
And the actual screen will be like below
STEP2. You will need to put Agile Wallboard Gadget on Confluence Page like below
Then you will see following popup:
your Jira server URL. Once everything is okay, you will see its status as .
STEP3. You will need to setup Application Link at Jira: <Confluence base url>/plugins/servlet/applinks/listApplicationLinks
STEP4. You will need to put your Confluence server URL. Once everything is okay, you will see its status as .