Set Up Confluence and Jira
Important prerequisite: This manual should be executed only after Set Up the Atlassian Application has been accomplished
In order to index the contents of Confluence and Jira, our service account should be invited to your environment.
Log in with the administrator account in admin.atlassian.com
Navigate to Directory, then Users

Invite it@amber.de as a person with User roles assigned to Confluence and/or Jira.

Click on Invite 1 person
Grant read permissions to all (relevant) space for the account it@ambersearch.de
The following points are relevant only for Jira
Grant Jira Administration permissions to the invited account
This is needed for reading the permission schemes and the associated users' permissions
Go to your Atlassian Admin Dashboard, then navigate to Products
Add product "Jira Administration" if not present

Click on Manage access for Jira Administration
Click on jira-admins-{your_company_name}

Add group members, select it@amber.de account, Add users

This step is relevant only if your tenant uses issue security levels. By default, this is not the case.
Go to https://customername.atlassian.net/secure/admin/ViewIssueSecuritySchemes.jspa
Iterate through all existing schemes, then through all existing Security levels

Add service account it@amber.de to all existing security levels