Set up Suggested Payment approvers via the system security settings:
Click System, then click Security, then click Approvers, then click Suggested Payment Approver.
Select the line of the Security Profile the user belongs to.
Click Edit.
Select the Stage 1 and Stage 2 checkboxes to specify which stages users in the profile can approve.
Select Disputed if you want users to be able to approve disputed invoices.
Click Save.
The changes made will apply to all users assigned to the Security Profile that was updated.
To see a list of the users in the profile, click the eye icon.
Users will need to close and re-open Financials for the changes to become applicable.
Click the following link for information about Security Profiles.