Adwords Connector Issue: Customer_Not_Found


Hi everyone, I've been trying for 3 weeks now to connect our mcc account with SeoToolsforExcel, however i keep getting this error whenever I try it.

Costumer_Not_Found, while doing some research I found this " No account found for the customer ID provided in the header", but I don't quite understand.

So i reached one of Google's adwords support and wrote the following:

"The error AuthenticationError.CUSTOMER_NOT_FOUND means that no account was found for the customer ID against which you are making the call. Since seotoolsforexcel is a third party platform, I feel that their customer care would be the right team to help you with your queries. Even though seotoolsforexcel uses AdWords API to perform its tasks, the application may have additional functionality or behavior that we aren’t familiar with. You could reach out to the customer care through their support channel. Feel free to point them over to this thread for additional context. If you are able to get the AdWords API logs, I will be able to help you in troubleshooting the issue. "

Any ideas on why the connection is not working?

Thanks in advance.



Has it worked in previous versions of Seotools? Also, do you have a developer token?


Yes I have the developer token, is the first step actually, do you think I should generate a new one?. Actually I have'nt tried in any other version besides this one


No that shouldn't be necessary. Just wanted to confirm if the issue is related to Seotools. What version do you have installed? We recently made an upgrade to the Adwords connector which requires upgrading Seotools (Adwords is hard-coded and not available via the Manager).


I currently have 8.0.11, and is true I don't see the Adwords connector through the manager, should I try a previous version?


Hi there, any update?


Hi Josh,

I thought I answered your email. If not, I apologize for the mix-up. Can you send me an email at and I'll send you the latest build which has fixed several issues and bugs which may be related to this one.


Sure, I'll respond to that email.