BPM Approval Groups maintenance

Summary

Payable Approval using approval group with users assigned to the approval group for employee that have left the company

Content

We are using approval groups for approval of Invoices and also approval of payments

Approval group are defined in BPM and employee are assigned in those approval group

When a user leaves our company we deactivate the users but we forget sometimes to remove them from the approval group. They remain in the approval process and we can see it in the workflow

We are trying to find other solution that assigning employee in BPM. Could we define a specific job (we are not using HR module) only defining the employee in Manage user and assign that job to the BPM approval process.