PO Approval Rule Problem for Cost Center Manager

Hello,

Can you please help regarding a PO approval problem.

I set a Terms Approval Serial rule which has the following actions:

Action 1:

Action: Type Approval required

Route Using: Single approver

User Type: Project Manager

Action 2:

Action: Type Approval required

Route Using: Single approver

User Type: Cost center manager

Action 3:

Action: Type Approval required

Route Using: Approval group

Approval Group: POApprovalGroup - COMEX

The problem is in the Action 2:

I set up a Cost Center Manager in "Workforce Structure > Manage Deparments" for the Cost Center "V80201" (Achats) but the approval rule for the Action 2 is not appearing when I click on the "Manage Approvals" on the PO page.