Hi Jonathan, Instead of creating a Criterion of type Language then passing it to the CampaignCriterion, create an object of type Language <https://developers.google.com/adwords/api/docs/reference/v201506/CampaignCriterionService.Language> then use it when setting the criterion in the CampaignCriterion.
For Language criterions, you cannot SET (or update) the language. You must first REMOVE the previous Language then ADD the new one. Cheers, Anthony AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/178e0571-91f1-4c01-9f0e-a6e971497c01%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.