In order to delete a user from the approval workflow, please, follow next steps:

  1. Go to the left-side menu and choose Configuration.

  2. Choose Approval workflow for Purchase request/Purchase order/Bill/Receive request/Receive.

  3. Add new approver for required step (instead of the user, you want to remove).

  4. Choose the user, you want to remove from the approval workflow.

  5. Click Delete.