Hi Simon, The purpose of the CampaignCriterion is to allow you to add negative keywords or placements to a campaign, as is available in the AdWords web interface.
Best, - Eric Koleda, AdWords API Team On Mar 16, 12:41 am, Simon <simon.kitch...@airnz.co.nz> wrote: > Ok, I've figured out some answers. > > Although the CampaignCriterion and AdGroupCriterion classes look > rather like they are building an N:N relation forcampaign-criterion > and adgroup-criterion respectively, they are not. Instead, a criterion > "belongs" to either a CampaignCriterion or AdGroupCriterion, and is > created when its owner is ADDed. > > It is therefore not possible to link the *same* criterion object to > multiple AdGroup objects; a new one is created for each adgroup. > > And an AdParam is really "attached" to an AdGroupCriterion; the > AdParam "key" is (groupid, criterionid) which is the same as the key > for an AdGroupCriterion. > > I'd still appreciate some info on the purpose of CampaignCriterion.... -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Have you migrated to v200909 yet? The v13 sunset is on April 22, 2010. Also find us on our blog and discussion group: http://adwordsapi.blogspot.com http://groups.google.com/group/adwords-api =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en
