Hi Elton,
It seems that you specified your clientCustomerId in your request (you set this in the property file) for
getCustomers() that's why only one client account information is being returned. In order to get all the client accounts associated to your OAuth credential, you don't need to set your clientCustomerId in the property file or in your request.
Kindly do the suggestion first and let me know if it works. If the issue still persists, kindly provide your SOAP request and response logs.
Note: I will delete your original post as this contains screenshot of a confidential information. In the future, please do not post the private details publicly. You may refer to our
guide before posting.
Thanks,
Vincent
AdWords API Team