InfoPath Dev

Error occurs at the execution of the data connection.  (The error does not occur when I choose to send the main data source XML in the submit data connection.) This form does not use custom code. The event viewer logs do kick out a form postback error, "Form ID: ...

 No, there's no additional information provided in the error box, as I would expect.  Just the message and two buttons, "Try Again" and "Exit Form."

 I have a submit data connection set up to take all of the XML from a secondary data source to be input into a string parameter of a web service.  This works if using InfoPath Filler but when I choose to edit the form inside of a web-browser, I get the error, "There has been an error while processing the form" without any ...