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For definitions of the PayFields actions, including the transaction result callback functions, see the Developer Guide.

Note

Important Info for Canadian Merchants:

  • province fields replace the state fields (see valid values here).

  • postal fields replace zip fields (see valid values here).

Level II Fields

PayFields provides Level II fields for merchants who use additional information to qualify for reduced interchange fees. The example below shows how to add the Level II/III fields and set their values:

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