I found : Slack requires that the Jira instance is accessible through the internet via a secure connection (HTTPS). Therefore, you need to open up your secure port and make sure that the server has a valid certificate.
Is a self-signed certificate valid?
Learn how to use two new reports for next-gen projects in Jira Cloud: Cumulative flow diagram and Sprint burndown chart. Ivan Teong, Product Manager, Jira Software, demos the Cumulative ...
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