Hello,

I am receiving the same error. I am able to authenticate with OAuth2 
successfully and retrieve the refresh token, but when I try to use either 
the `#search` or `#search_stream` methods I receive the 
`GRPC::Unimplemented` error when the stream tries to open. The synchronous 
`#search` method returns the error immediately while the `#search_stream` 
error returns an `Enumerable` object which throws the error when trying to 
navigate the enumerable with a method like `#next` or `#to_a`.

I have a Ruby module with a client method that returns the Ads client:
```
def self.client
  
Google::Ads::GoogleAds::GoogleAdsClient.new(Rails.root.join("google_ads_config.rb").to_s)
end
```

Then I've implemented a `.get_campaigns` method as:
```
def self.get_campaigns
  responses = client.service.google_ads.search_stream(
    :customer_id => CUSTOMER_ID,
    :query => "SELECT campaign.id, campaign.name FROM campaign ORDER BY 
campaign.id"
  )

  responses.each do |response|
    response.results.each do |row|
      puts "Campaign with ID #{row.campaign.id} and name 
'#{row.campaign.name}' was found."
    end
  end
end
```

Here's the full output with logging enabled:
```
irb(main):001:0> GoogleAdsService.get_campaigns
I, [2022-04-25T09:11:58.498912 #1828]  INFO -- : CID: 9380164633, Host: 
googleads.googleapis.com:443, Method: 
/google.ads.googleads.v6.services.GoogleAdsService/SearchStream, IsFault: no
W, [2022-04-25T09:11:59.050785 #1828]  WARN -- : CID: 9380164633, Host: 
googleads.googleapis.com:443, Method: 
/google.ads.googleads.v6.services.GoogleAdsService/SearchStream, IsFault: 
yes
I, [2022-04-25T09:11:59.051284 #1828]  INFO -- : Outgoing request: Headers: 
{"developer-token":"REDACTED","login-customer-id":"9380164633","x-goog-api-client":"gl-ruby/2.7.4
 
gax/0.3.4 gapic/10.0.0 
grpc/1.45.0","x-goog-request-params":"customer_id=9380164633"} Payload: 
{"customerId":"9380164633","query":"SELECT campaign.id, campaign.name FROM 
campaign ORDER BY campaign.id"}
I, [2022-04-25T09:11:59.051510 #1828]  INFO -- : Incoming response (errors):
  GRPC::Unimplemented(12:Operation is not implemented, or supported, or 
enabled.. 
debug_error_string:{"created":"@1650892319.050462000","description":"Error 
received from peer 
ipv6:[2607:f8b0:4009:809::200a]:443","file":"src/core/lib/surface/call.cc","file_line":906,"grpc_message":"Operation
 
is not implemented, or supported, or enabled.","grpc_status":12}):
  called from: 
/Users/tylerchrestoff/code/data-warehouse/app/services/google_ads_service.rb:59:in
 
`each'
Traceback (most recent call last):
        4: from (irb):1
        3: from app/services/google_ads_service.rb:59:in `get_campaigns'
        2: from app/services/google_ads_service.rb:59:in `each'
        1: from app/services/google_ads_service.rb:59:in `each'
GRPC::Unimplemented (12:Operation is not implemented, or supported, or 
enabled.. 
debug_error_string:{"created":"@1650892319.050462000","description":"Error 
received from peer 
ipv6:[2607:f8b0:4009:809::200a]:443","file":"src/core/lib/surface/call.cc","file_line":906,"grpc_message":"Operation
 
is not implemented, or supported, or enabled.","grpc_status":12})
irb(main):002:0>
```

Any help is greatly appreciated.

On Tuesday, April 19, 2022 at 2:04:26 AM UTC-4 adsapi wrote:

> Hi Kiran,
>
> Thanks for reaching out to the Google Ads API Forum.
>
> I can see that you’ve encountered an error with the message “*Operation 
> is not implemented, or supported, or enabled.*”. However, could you 
> provide us with the complete *request* 
> <https://developers.google.com/google-ads/api/docs/concepts/field-service?hl=en#request>
>  
> and *response* 
> <https://developers.google.com/google-ads/api/docs/concepts/field-service?hl=en#response>
>  
> logs with the *request-id* 
> <https://developers.google.com/google-ads/api/docs/concepts/call-structure?hl=en#request-id>
>  
> generated, so our team can investigate further?
>
> For the ruby library, logging can be enabled by following this *guide* 
> <https://developers.google.com/google-ads/api/docs/client-libs/ruby/logging>. 
> You may then send the requested information via the *Reply privately to 
> author* option. If this option is not available, you may send the details 
> directly to our [email protected] alias instead.
>
> Regards,
> [image: Google Logo] 
> Yasar 
> Google Ads API Team 
>   
>
> ref:_00D1U1174p._5004Q2a4EFe:ref
>

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