Looking for V9 setup of “Sale invoice approval flow”? Look here: http://help.workbook.net/knowledgebase/sales-invoice-approval-flow/
In this section you can set approvers for all sales invoices. You can choose a role e.g. ‘Project Manager on job’ who has to approve an entry or you can set a general approver and choose an employee. It is also possible to have a trigger amount at which the approver is set.
You can add an approver role by clicking this button and choose from a list.
You can delete a role by using this button
You can update all entries with approvers by clicking this button.