Bing Ads API Reporting Service returns error code 2015 "No Dimension Selected" - ruby-on-rails

Question

I'm trying to pull some data from the Bing Ads API but I keep getting error code 2015. I'm using Savon with Ruby on Rails. Here is the request:
<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tns="https://bingads.microsoft.com/Reporting/v13" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns="https://bingads.microsoft.com/Reporting/v13">
<env:Header>
<AuthenticationToken>blahblahblah</AuthenticationToken>
<CustomerAccountId>blahblahblah</CustomerAccountId>
<CustomerId>blahblahblah</CustomerId>
<DeveloperToken>blahblahblah</DeveloperToken>
</env:Header>
<env:Body>
<tns:SubmitGenerateReportRequest>
<ReportRequest xsi:nil="false" xsi:type="AccountPerformanceReportRequest">
<ExcludeColumnHeaders>true</ExcludeColumnHeaders>
<ExcludeReportFooter>true</ExcludeReportFooter>
<ExcludeReportHeader>true</ExcludeReportHeader>
<Format>Csv</Format>
<Language>English</Language>
<ReportName>AccountPerformanceReportRequest</ReportName>
<ReturnOnlyCompleteData>false</ReturnOnlyCompleteData>
<Aggregation>Summary</Aggregation>
<Columns>
<AccountPerformanceReportColumn>Spend</AccountPerformanceReportColumn>
<AccountPerformanceReportColumn>Clicks</AccountPerformanceReportColumn>
<AccountPerformanceReportColumn>Conversions</AccountPerformanceReportColumn>
<AccountPerformanceReportColumn>Revenue</AccountPerformanceReportColumn>
</Columns>
<Filter xsi:nil="true"/>
<Scope>
<AccountIds xmlns:a1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
<a1:long>blahblahblah</a1:long>
</AccountIds>
</Scope>
<Time>
<CustomDateRangeEnd>
<Day>02</Day>
<Month>04</Month>
<Year>2019</Year>
</CustomDateRangeEnd>
<CustomDateRangeStart>
<Day>01</Day>
<Month>04</Month>
<Year>2019</Year>
</CustomDateRangeStart>
<PredefinedTime xsi:nil="true"/>
<ReportTimeZone>EasternTimeUSCanada</ReportTimeZone>
</Time>
</ReportRequest>
</tns:SubmitGenerateReportRequest>
</env:Body>
</env:Envelope>
As you can see, I'm pulling the report with 'Summary' as the aggregation type. If I use 'Monthly' as the aggregation type and include a 'TimePeriod' column, it works perfectly, but if I do that then the data returned is for the whole month of April as opposed to the date range I've selected 04-01-2019..04-02-2019.
Here is the response:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body>
<s:Fault>
<faultcode>s:Server</faultcode>
<faultstring xml:lang="en-US">Invalid client data. Check the SOAP fault details for more information</faultstring> <detail>
<ApiFaultDetail xmlns="https://bingads.microsoft.com/Reporting/v13" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<TrackingId xmlns="https://adapi.microsoft.com">52665fe5-3eb8-42e0-ad8e-942e848297ce</TrackingId>
<BatchErrors/>
<OperationErrors>
<OperationError>
<Code>2015</Code>
<Details>No Dimension selected.</Details>
<ErrorCode>RequiredColumnsNotSelected</ErrorCode>
<Message>The specified report request does not specify all the required columns for this report type. Please submit a report request with the required columns for this report type, and optionally additional columns that are to be included in the report.</Message>
</OperationError>
</OperationErrors>
</ApiFaultDetail>
</detail>
</s:Fault>
</s:Body>
</s:Envelope>
The error code returned would lead me to believe that a TimePeriod column is required even for Summary, but that contradicts what is documented here.
All other aggregation types work with this setup. Any help would be greatly appreciated.

Answer 1

Good catch. We will update documentation to clarify that at least one attribute (non performance stat) e.g., AccountId must be included. Most of the other reports have specific attributes that must be included, whereas the account report does not. I hope this helps!