Hello Angel,
What are you trying to accomplish with the integration?
There are a few articles that describe what is possible when the products are integrated:
https://support.atlassian.com/jira-service-desk-cloud/docs/integrate-jira-cloud-with-confluence/
https://support.atlassian.com/confluence-cloud/docs/use-jira-and-confluence-together/
This is the Atlassian document that describes how to link JIRA to other applications:
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