v201705 and v201708 will be sunset on March 28, 2018. Please migrate to a newer version if you haven't already done so.

enum CampaignPreferenceError.Reason (v201705)

Enumeration Description
PREFERENCE_ALREADY_EXISTS A campaign cannot have two preferences with the same preference key.
PREFERENCE_NOT_FOUND No preference matched the given preference key.

Send feedback about...

AdWords API
AdWords API
Need help? Visit our support page.