The Budget Workflow Add-In for SharePoint currently has one issue you should be aware of. If you create a Functional Area that has a title which includes an ampersand (&), you will get an error with the Budget Requests for that Functional Area, and will not be able to proceed. We will be including a fix for this issue in the next version of the Budget Workflow Add-In. In the meantime, go to App Administration > Functional Areas, and edit the list items which include an ampersand and change it to "and". For instance, a Functional Area named "Meals & Entertainment" should be renamed to "Meals and Entertainment".