Methods# Lucky Method Method Name Purpose Item Schema Amount Modes Options Example Validation Notes Grand Method Method Name Purpose Input Options Selection Behavior Partial Fulfillment Metadata Example CSV Source Example Flexible Item Methods Method Names Shared Options Method Requirements and Semantics Examples Campaign Methods Method Names Shared Inputs Eligibility Callback Item Definition (campaign.run and campaign.simulate) campaign.run campaign.batch campaign.simulate Partial Fulfillment Candidate normalization notes