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Depending on dispute reason and card network, different fields and documentation must be present when you call the file endpoint for a case. Missing values produce a 400 response with parameter_missing or documentation_missing errors. This reference lists, per network, the requirements for each dispute type. Evidence beyond these requirements is also recommended, see Dispute Types.

Mastercard

Required fields

Required documentation

Visa

Required fields

Required documentation

American Express

Required fields

Required documentation

For the full list of recommended evidence per dispute type, see the Dispute Types documentation. For filing windows and earliest-filing dates, see Filing Timelines.