Hi, The error AuthenticationError.CUSTOMER_NOT_FOUND <https://developers.google.com/adwords/api/docs/common-errors#AuthenticationError.CUSTOMER_NOT_FOUND> means that you are trying to access an account that was just created with ManagedCustomerService before the account is established in the backend. This being said, could you clarify if what you meant by "client id" is the clientCustomerId that is being used in the header?
Also, to further investigate this, could you provide the complete SOAP request and response logs when you encountered the error? Please reply via *Reply privately to author*. Thanks and regards, Luis AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/35fe64e4-3630-4ed3-9bf4-83d97fe2f805%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.