Before Getting Started
First, if you do not have a Yoom account, please create one from the Yoom account creation page. You can start immediately!
Also, please check Getting Started with Yoom for basic operations of Yoom.
Step 1: Connect Backlog and Google Calendar to My Apps!
(1) After logging into Yoom, select "My Apps" from the left column and choose "+ New Connection".

(2) Click on Backlog from the list of new connections in My Apps.
(3) A page to enter the domain will be displayed, so enter it and click Add.
(4) You will be taken to a screen like the one below, click "Allow".
If you encounter issues with Backlog app integration, please refer to this.
Points to Check When Failing Backlog App Integration | Yoom Help Center (intercom.help)

(5) Next, register Google Calendar. Click on Google Calendar from the list of new connections in Yoom, just like in (1).
(6) Click "Sign in with Google".
(7) Select the account you want to connect and click "Next".
(8) Choose the access range for Google Calendar and click "Continue" at the bottom right. This completes the integration with My Apps!