Hi Nima, As per this blog post <http://googleadsdeveloper.blogspot.com/2016/10/access-multiple-adwords-accounts-with.html> , CustomerService.getCustomers() <https://developers.google.com/adwords/api/docs/reference/v201705/CustomerService#getCustomers> returns the AdWords accounts associated with the Google account you used to generate your OAuth2 credentials and not child accounts under a manager account.
If you wish to retrieve the client accounts under your manager account, then you may use the ManagedCustomerService.get() <https://developers.google.com/adwords/api/docs/reference/v201705/ManagedCustomerService#get> . Here is a sample code <https://developers.google.com/adwords/api/docs/samples/java/account-management#get-the-account-hierarchy-under-the-current-account> to help you get started with development. Let me know if this helps or if you need further assistance. Regards, Ivan 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/866a5534-da5f-43e4-beb5-fc0af51c74f1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.