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promoCodeOfferUnknownException: default error if the backend or campaign platform doesn't return a specific one.
promoCodeOfferExpiredCode: for the expired code message
promoCodeOfferInvalidCode: for the invalid code message
promoCodeOfferRedeemedCode: for the already redeemed code
invalidOfferId: invalid offer id cunfigured configured in the offer message (for bad setup)
promoCodeAlreadyApplied: message when a code is already applied
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