Atlassian Confluence V2 Connector Requirements
The connector was introduced with the CES 7.0.8225 March 2016 release.
Coveo license for the Confluence V2 connector
Your Coveo license must include support for the Confluence V2 connector to be able to use this connector (see About the Coveo License).
Supported Confluence versions:
Confluence 5.7 to 6.0.1 on-premises
Installations using the Confluence REST API and Search REST API.
However, document permissions and incremental refresh are not supported, because it is not possible to install the required Coveo plugin in an Atlassian Cloud instance.
Enable the Confluence remote API needed by the Confluence V2 connector (see the Atlassian document Enabling the Remote API).