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enum ConversionOptimizerEligibility.RejectionReason (v201809)

Enumeration Description
CAMPAIGN_IS_NOT_ACTIVE Campaign is not active
NOT_CPC_CAMPAIGN Conversion optimizer is available to only Manual CPC campaign
CONVERSION_TRACKING_NOT_ENABLED Conversion tracking is not enabled for the Campaign
NOT_ENOUGH_CONVERSIONS The campaign does not meet the requirement to have a sufficient count of conversions.