Organization ID is required in the authentication process to ensure that authorized users can only interact with your organization's data that are relevant to their role, preventing unauthorized access to sensitive information.
Follow the below steps to find the OrgID from your organization account:
Step 1: Visit https://admin.atlassian.com
Step 2: If you have access to more than one Organization accounts, select the one which you want to know the Org Id.
Step 3: Check the URL from the address bar and collect your OrgID.
Example
If your address bar has:
https://admin.atlassian.com/o/152d61b6-****-****-****-********b640/overview
Your OrgID is: 152d61b6-****-****-****-********b640