Like @MGBC said, building one from scratch is best, I tried using the suite app, but it was way to restrictive for our process, so I built a workflow from scratch. This allows me to edit and make adjustments as needed. I added a reminder portion into ours, this reminds the approver that they have something to approve if they do not approve it after 5 days. Doing your own, does require creating custom fields on the Vendor Bill screen, but it was worth the work. I also created a search that populates the approver drop down with only employees that are set as approvers on their employee record. (check box) Took this same approach for JE's