Product group not being created when I create a shopping campaign (AdWords, Ruby client)

[doug livesey]

Hi -- I've been adapting the Ruby code from the examples for creating a campaign: https://github.com/googleads/google-api-ads-ruby/blob/master/adwords_api/examples/v201506/shopping_campaigns/add_shopping_campaign.rb

I have everything creating happily, but the ads don't seem to be running, as I'm getting no impressions at all, after the whole weekend.

I'm guessing that this is because a product group is not getting created when the campaign is.

When I go to look in the AdWords browser UI, it tells me a default product group hasn't been created, and gives me a link to create one -- clicking that adds an "All products" product group to my campaign.

I've clicked that link this morning, so I'll see if that starts generating some impressions, now.

Can anyone advise me on how to create the product group when I create the shopping campaign?

Or what I'm doing/thinking wrong?

Thanks for any & all advice,

   Doug.