Financial Force accounting package for Salesforce does not calculate Sales Tax on Sales Orders. We have been having a lot of issues with tax related problems on Customer Quotations and Sales Orders within Financial Force objects. The solution was to use another Tax package from Avalara.
Avalara doesn't seem to provide Financial Force integration, so we're tasked to integrate Avalara with Financial Force within Salesforce environment. The following ordered list shows the steps required to complete AvaTax and Financial Force integration.