You will need to set idSpecified to true otherwise the ID is not passed which obviously wouldn't work on a set operation
campanha.id = Id_Adwords campanha.idSpecified = True To activate soap tracing in .NET you could use the lib \traceextension.cs in the .net API Client Library. You would have to reference that class as a soapextension in your app.config Last but not least, I think you should try to use the .net Client library to get started. It has lot's of samples and handles all the basic stuff for you such as soap tracing, authentication etc. -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Have you migrated to v200909 yet? The v13 sunset is on April 22, 2010. Also find us on our blog and discussion group: http://adwordsapi.blogspot.com http://groups.google.com/group/adwords-api =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en