Hi Truong, Since using the EnhancedCpcBiddingScheme <https://developers.google.com/adwords/api/docs/reference/v201802/BiddingStrategyService.EnhancedCpcBiddingScheme> would most likely generate a conversion, it is recommended that you set up conversion tracking <https://developers.google.com/adwords/api/docs/guides/conversion-tracking> on your account to accurately monitor the said conversions and the costs that would result from it.
However, as for your question regarding the effect in your campaigns if you do not setup conversion tracking, I'm afraid that this is already more of a product level concern. That said, you may reach out to the product experts via the AdWords Community Forum <https://www.en.advertisercommunity.com/t5/Google-AdWords/ct-p/Google_AdWords#> as they are more equipped to assist you on this. Best regards, Peter 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 email@example.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 https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/443b4000-da66-48e4-a70c-c5d2f0f08572%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.