Exclude CEO from Absence Approvals

Hello,

I want to exclude CEO from Absence approvals

Test case Employee request absence

Approval should go to 1st line manager >> 2nd line manager

If 2nd line manager CEO -- the approval should stops at 1st line manager.

I followed the below documents but couldn't reach out a solution:

1-

https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=111081950316210&id=2678393.1&_afrWindowMode=0&_adf.ctrl-state=i5yvnjoi8_9

Global Human Resources: What expression to use for Prohibit User Self-Approval in order to skip the initiator ( Doc ID 2678393.1 )

2- https://community.oracle.com/customerconnect/discussion/682741/how-to-stop-approval-work-flow-below-the-level-of-ceo

3- https://community.oracle.com/customerconnect/discussion/731440/how-we-can-exclude-ceo-from-approval-chain

And I used the below conditions and still not working: