threeDSRequestorChallengeIndicator

Indicates whether a challenge is requested for this transaction

NO_PREFERENCE - No Preference
NO_CHALLENGE_REQUESTED - No Challenge Requested
CHALLENGE_PREFERENCE - Challenge requested (3DS Requestor preference)
CHALLENGE_MANDATE - Challenge requested (Mandate)
NO_CHALLENGE_RISK_ALREADY_ASSESSED - No Challenge requested (Transactional risk analysis is already performed)
DATA_SHARE_ONLY - No Challenge requested (Data Share Only)
OTHER - Other indicators not captured by above. These are rarely used

if the JSON field has an unexpected type or is unexpectedly missing or null (e.g. if the server responded with an unexpected value).