Enable store and forward

To enable store and forward, add the following snippet to the fundingData.card.pointOfInteraction object.

{
  "storeAndForward": {
    "storeAndForwardType": "StoreAndForward",
    "approvalCode": "A123456",
    "systemTransactionId": "0271bc3f-a905-44f0-8411-4ac3858e1b00"
  }
}

Parameter	Description
`fundingData.card.pointOfInteraction.storeAndForward` object	Details about the store and forward settings for the transaction.
`fundingData.card.pointOfInteraction.storeAndForward.storeAndForwardType` string (enum)	A mechanism used for handling transactions when the merchant's connection to the PXP gateway is disrupted. It securely stores transactions offline until communications are re-established with the gateway. Possible values: `None` `StoreAndForward` `ForcedStoreAndForward`
`fundingData.card.pointOfInteraction.storeAndForward.approvalCode` string	A unique identifier code provided by the authorising entity, indicating approval or reference for the transaction. This code typically consists of alphanumeric characters, starting with an uppercase letter, and serves as a key reference for authorisation verification.
`fundingData.card.pointOfInteraction.storeAndForward.systemTransactionId` string (36 characters)	The unique identifier generated by PXP to identify the transaction.