TransactionSummary
- gatewayType: string | null
_reference Gateway-assigned tracking ID; null until received
- idType: stringFormat: uuid
- merchantType: string
_transaction _id - statusType: string
- tenantType: string | null
_reference _id Merchant-owned reconciliation reference supplied at payment submission. Null when no reference was provided.
- typeType: string
Internal transaction type (e.g. sdd_sale, sdd_rebill)