Create a new client application in TozID by logging into your realm, navigating to clients, and selecting "create".
Create Atlassian Client Screen
Your entity ID can be found at https://admin.atlassian.com and then navigating to your organization, security, then SAML Single Sign-On. It will be a series of letters and numbers similar to the example in the screenshot above.
Enter your entity ID and select save.
Navigate to your Atlassian administration page. Select "security" and then "SAML single sign-on" from the left menu. Configure the following values: