Hi J, I think the namespace of AuthToken and other headers in your request xml is wrong. It should be ns2:authToken. I've pasted a sample SOAP request from a successful call for your reference.
<?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Header> <RequestHeader xmlns="https://adwords.google.com/api/adwords/cm/v200909"> <authToken>********</authToken> <clientEmail>********</clientEmail> <developerToken>********</developerToken> <userAgent>AWAPI DotNetLib 9.0.0 - Google</userAgent> </RequestHeader> </soap:Header> <soap:Body> <get xmlns="https://adwords.google.com/api/adwords/cm/v200909"> <selector> <idFilters> <campaignId>29606506</campaignId> </idFilters> </selector> </get> </soap:Body> </soap:Envelope> Best, Anash P. Oommen, AdWords API Team -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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