We have a customer who would like workflow to verify the data validity on a submitted form. If accurate then it files it like normal.  If incorrect, then it sends the form back to the user to update.  The customer does not want to create a new form if it is incorrect, they want the same form instance to route the form back to the user.  Is there a way to have Workflow approve a form without writing a custom script that updates Form's SQL database directly?  I am hoping for a way through possibly the "HTTP Form Post" activity or some other method for Workflow to interact with Forms.