QuoteAnywhere cannot generate contract documents because the API that is trying to reach the report files does not have access to that folder.

Solution: 

QuoteAnywhere will need access to the Reports folder in order to generate documents.  If you're not sure where your Reports folder is located, you can find the path in WeEstimate -> Program Options -> Environment -> Reports -> Reports Location.

Next, check what Application Pool the QuoteAnywhere site is using.  This can be found in IIS -> QuoteAnywhere 2.0 API site -> Basic Settings ... -> Application Pool.

Next, go to Application Pools -> [App Pool the QA2 site is using] -> Advanced Settings -> Identity.  Enter credentials that have access to the Report Folder.  A specific user is required to authenticate for the folder.