Custom Retention policies for default folders in Outlook

Hello,

The following are the steps I've taken to create a retention policy for a user.Exchange 2013, outlook 2013

The problem is that even if I create a retention tag for a default folder, I cannot implement it. I've gotten retention tags for user created folders to work, but not the default folders.

1. Login to microsoft 365 as exchange Administrator
2. Click Admin > Exchange
3. Click ‘Compliance Management’ on left side
4. Click ‘Retention Tags’
5. Create desired retention tag by folder (choose default folder or user created folder)
6. Save each tag as it is created
7. Click ‘Retention Policies’
8. Click ‘New’ to create a new policy
9. Add desired tags to policy and click save
10. To apply Retention Policy click ‘Recipients’ on left side
11. Click ‘mail boxes’

12. Select user and click edit > mailbox features

13.  Select desired retention policy

14. Save

Using this method I created a retention tag to delete mail in the junk mail folder after 14 days. I added the 14 day junk mail retention tag to a retention policy and applied it to a user. But whenever I look at the junk mail folder it shows that the email will be deleted in 30 days --- not 14.

What am I doing wrong?