Hi Sean,
You're indeed correct, SearchRankLostImpressionShare should be available.
Can you log your request and response XML and send them to
adwordsapi-supp...@google.com so we can look into this further.
Cheers,
- Paul, AdWords API Team.
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We've updated our client libraries (DotNet) to v201302. We've been getting
the Campaign Performance Report with Impression Share columns fine until
the new release.
ReportDefinitionError.INVALID_FIELD_NAME_FOR_REPORT
SearchRankLostImpressionShare
SearchRankLostImpressionShare is listed in you