I have set up a sharepoint form library with an inforpath form and workflow and I am wanting to add the form ID to the end of the file name, which is concatinated from fields in the form, when the form is submitted. I have created a Data connection to grab the form ID and I have added a data conection with a formula 'concat( "field", "field", ID)' to name the form. But it pulls the previous form ID. I tried 'concat( "field", "field", ID) +1' but I get the file name 'NaN'. Does anyone know how I can fix this problem? The deadline to release this workflow is fast approaching.