Workflow in XML file

Hi everybody, I would like to modify the workflow of the sale_order. My goal is to have a intermediaire state between quotation and sale_order. When I use my function , I have this error: - "The value "int" for the field "sale_order.state" is not in the selection I add this code in the XML file: intfunctionwrite({'state':'int'})int_sent Someone have an idea how it works? Thanks a lot, Selverine