Confluence Configuration for Macros
To enable the Gantt macro in Confluence, the Jira/Confluence admin needs to:
Download the Confluence Helper for Structure app and install it on your Confluence instance.
Connect Confluence to Jira using Application Links. You'll need to enable outgoing authentication from Confluence to your Jira server. (Documentation: Configuring Application Links)
Use OAuth Authentication (preferred) to let the Confluence page viewer authenticate separately with Jira. (Documentation: Configuring OAuth for an Application Link)
Use Trusted Applications authentication if you'd like Confluence users to act in Jira under the same usernames without additional authentication. (Documentation: Trusted Application Authentication)
Check the sample page to confirm whether you can include the Gantt macro and get data from Jira.