I successfully download a video performance report, but after the CampaignService get always returning null with no error and no exceptions

[ccwwmanager]

Hello, 

i hope someone can help me.

I am successfully downloading a video performarce report and after i am 
trying to get more information about the campaigns. 
For this i am using the CampaignService and i am passing the ids of the 
campaigns from the previous report, but i always get no entries without 
error or exception.

The code is like the example on Github (
https://github.com/googleads/googleads-dotnet-lib/blob/master/examples/AdWords/CSharp/v201809/BasicOperations/GetCampaigns.cs
). 
I have tested to get all the campaigns, without predicates, but the result 
is the same.

This is my code:

  
public IEnumerable<Campaign> GetAdCampigns()
        {


            AdWordsUser user = new AdWordsUser(new AdWordsAppConfig()
            {
                DeveloperToken = "MyDeveloperToken",
                OAuth2ClientId = "MyAccountClientId",
                OAuth2ClientSecret = "MyAccountSecret",
                OAuth2Mode = OAuth2Flow.APPLICATION,
                ClientCustomerId = "MyClientCustomerId",
                OAuth2RefreshToken = "MyOAuth2RefreshToken",
                UserAgent = "microsoft-socialinsights:ReportDownloader:V3.2"
            });
            List<Campaign> campaigns = new List<Campaign>();
            
            using (CampaignService campaignService = (CampaignService)user.
GetService(AdWordsService.v201809.CampaignService))
            {
                Selector selector = new Selector()
                {
                    fields = new string[]
                    {
                            Campaign.Fields.Id,
                            Campaign.Fields.Name,
                            Campaign.Fields.StartDate,
                            Campaign.Fields.EndDate
                    },                                     
                    paging = Paging.Default
                };


                CampaignPage page = new CampaignPage();


                try
                {
                    do
                    {
                        // Get the campaigns.
                        page = campaignService.get(selector);


                        // Display the results.
                        if (page?.entries != null)
                        {
                            campaigns.AddRange(page.entries);
                        }


                        selector.paging.IncreaseOffset();
                    } while (selector.paging.startIndex < page.
totalNumEntries);


                }
                catch (Exception e)
                {
                    throw new System.ApplicationException("Failed to 
retrieve campaigns by ids", e);
                }
            }


            return campaigns;
        }


I have checked the request with Fiddler and this is the request and the 
response:


POST https://adwords.google.com/api/adwords/cm/v201809/CampaignService 
HTTP/1.1
Cache-Control: no-cache, max-age=0
Authorization: Bearer ThisisMyBearer__uhmvtn_vUwhIE_4fLLfJLE4d3PFGFwg
Accept-Encoding: gzip, deflate, gzip, deflate
Request-Id: |302c1af313c1814f8aa71dfcf6376b0b.a9568c1c_4.
Content-Type: text/xml; charset=utf-8
Content-Length: 824
Host: adwords.google.com


<?xml version="1.0" encoding="UTF-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/";>
   <s:Header>
      <RequestHeader xmlns=
"https://adwords.google.com/api/adwords/cm/v201809";>
         <clientCustomerId>594-834-3247</clientCustomerId>
         <developerToken>MyDeveloperToken__EaiBWNDw8W6A</developerToken>
         <userAgent>microsoft-socialinsights:ReportDownloader:V3.2 (AwApi-
DotNet/24.7.0, Common-Dotnet/9.5.0, .NET CLR/4.0.30319.42000, , gzip)</
userAgent>
      </RequestHeader>
   </s:Header>
   <s:Body xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance";>
      <get xmlns="https://adwords.google.com/api/adwords/cm/v201809";>
         <serviceSelector>
            <fields>Id</fields>
            <fields>Name</fields>
            <fields>StartDate</fields>
            <fields>EndDate</fields>
            <paging>
               <startIndex>0</startIndex>
               <numberResults>500</numberResults>
            </paging>
         </serviceSelector>
      </get>
   </s:Body>
</s:Envelope>


<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";>
   <soap:Header>
      <ResponseHeader xmlns="https:
//adwords.google.com/api/adwords/cm/v201809">
         <requestId>00058e05935762030a374e58980e9328</requestId>
         <serviceName>CampaignService</serviceName>
         <methodName>get</methodName>
         <operations>1</operations>
         <responseTime>160</responseTime>
      </ResponseHeader>
   </soap:Header>
   <soap:Body>
      <getResponse xmlns="https://adwords.google.com/api/adwords/cm/v201809
">
         <rval>
            <totalNumEntries>0</totalNumEntries>
            <Page.Type>CampaignPage</Page.Type>
         </rval>
      </getResponse>
   </soap:Body>
</soap:Envelope>


Any idea what it is wrong?

Thank you in advance,


Rafael Sánchez


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