Hi Soumya, There are a few things you need to fix with your xml. - You need to use adwords.google.com for the namespaces, even when making requests against the sandbox. - You need a namespace qualifier on the xsi:type for the bidding strategy.
I noticed a few other things you don't need that could be removed - You don't need to specify the namespaces everywhere in the xml, once you declare it at the top it's declared for the whole XML document. - You don't need an xsi:type for RequestHeader. - You don't need to specify the cm namespace, you aren't using it. Here's the formatted working copy (working except it doesn't have valid credentials) I ended up with: <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="https://adwords.google.com/api/adwords/cm/v201101" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <SOAP-ENV:Header> <ns1:RequestHeader> <ns1:authToken/> <ns1:developerToken>x...@gmail.com++USD</ns1:developerToken> <ns1:clientEmail>client...@gmail.com</ns1:clientEmail> <ns1:userAgent>Adwords API Testing</ns1:userAgent> </ns1:RequestHeader> </SOAP-ENV:Header> <SOAP-ENV:Body> <ns1:mutate> <ns1:operations> <ns1:operator>ADD</ns1:operator> <ns1:operand> <ns1:name>TestCruise111</ns1:name> <ns1:status>PAUSED</ns1:status> <ns1:budget> <ns1:period>DAILY</ns1:period> <ns1:amount> <ns1:microAmount>50000000</ns1:microAmount> </ns1:amount> <ns1:deliveryMethod>STANDARD</ns1:deliveryMethod> </ns1:budget> <ns1:biddingStrategy xsi:type="ns1:ManualCPC"/> </ns1:operand> </ns1:operations> </ns1:mutate> </SOAP-ENV:Body> </SOAP-ENV:Envelope> - Kevin Winter 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