1. Pay In
PayPaga V2 API
  • API Overview
    • Introduction
    • API Reference
    • Environments
    • Payment methods
    • Errors
    • Standard Codes and Values
    • Transaction Status Definitions and Lifecycle
    • Assets
    • Authorization
    • Changelog
      • Format
    • Transactions Status Notification
      • Transactions Status Notification
      • How to verify callback signature
      • Signing public keys
  • OAuth2 Service
    • authenticate
    • Schemas
      • AuthRequest
      • AuthResponse
      • AuthFailed
  • PayPaga Integration API
    • Transactions Configuration
      • List available pay-in configurations.
      • List available pay-out configurations.
    • Pay-in Transactions
      • Search pay-in transactions
      • Create a pay-in transaction.
      • Retrieve a pay-in transaction.
    • Development Utilities
      • Override a pay-in transaction status
      • Override a pay-out transaction status
    • Pay-out Transactions
      • Search pay-out transactions
      • Create a pay-out transaction.
      • Retrieve a pay-out transaction.
    • Pay URLs
      • Create a hosted PayURL checkout
    • Balances
      • Retrieve merchant balance summary.
    • Catalog
      • List supported countries
      • List supported payment methods
    • Settlements
      • Search settlements
      • Retrieve settlement transactions
      • Retrieve settlement options
    • Reference Data
      • Retrieve exchange rates
      • Retrieve tax rates
    • Notifications
      • List notification subscriptions
      • Create a notification subscription
      • Retrieve a notification subscription
      • Delete a notification subscription
    • Schemas
      • MoneyAmount
      • Currency
      • Country
      • PayOutTransaction
      • CreatePayURLRequest
      • PredefinedFields
      • PayOutTransactionStatusOverrideRequest
      • CreatePayOutResponse
      • ReturnUrls
      • CreatePayOutRequest
      • TaxRate
      • PaymentInstructions
      • PayInTransactionStatusOverrideRequest
      • CreatePayInRequest
      • CreatePayInResponse
      • CreatePayURLResponse
      • BalanceTotal
      • BalanceCountry
      • BalanceSummaryResponse
      • TransactionCallbackPayload
      • PaymentMethodCatalogEntry
      • Settlement
      • NotificationSubscriptionRequest
      • SettlementWindow
      • SettlementOptionsResponse
      • SettlementTransaction
      • ListNotificationSubscriptionsResponse
      • NotificationSubscriptionResponse
      • ExchangeRatesResponse
      • PayInTransaction
      • ValidationErrorDetail
      • ValidationErrorItem
      • PaymentOption
      • PaymentMethod
      • OptionField
      • Product
      • PayInTransactionStatus
      • PayOutTransactionStatus
      • NotificationType
      • PaginationMeta
      • MerchantOrderReference
      • MerchantTransactionReference
      • FeeMode
      • Code
      • Message
      • ErrorDetail
      • PayInTransactionListResponse
      • Money
      • PayOutTransactionListResponse
      • CountryCatalogEntry
      • SettlementsResponse
      • SettlementTransactionsResponse
      • ExchangeRateQuote
      • ChannelType
  • Examples
    • Pay In Examples
      • Argentina
        • Argentina Instant Transfer
      • Bolivia
        • Bolivia Qr Interoperable
      • Brazil
        • Brazil PIX
      • Chile
        • Chile Bank Transfer
        • Chile Khipu
      • Colombia
        • Colombia Dale
        • Colombia Daviplata
        • Colombia Efecty
        • Colombia Gana
        • Colombia Movii
        • Colombia Nequi
        • Colombia PSE
        • Colombia RappiPay
        • Colombia ReFacil
        • Colombia Susuerte
        • Colombia Western Union
      • Ecuador
        • Ecuador Banco Guayaquil
        • Ecuador Bank Transfer
        • Ecuador Bemovil
        • Ecuador Deuna
        • Ecuador Mi Negocio Efectivo
        • Ecuador Omniswitch
        • Ecuador RapiActivo
        • Ecuador Western Union
      • Guatemala
        • Guatemala Akisi Pronet
        • Guatemala BAM Efectivo
        • Guatemala BAM Transferencia
        • Guatemala Banco Industrial
      • Honduras
        • Honduras Cash Voucher
        • Honduras Digital Voucher
      • Mexico
        • Mexico Pay With Cash
        • Mexico SPEI
      • Peru
        • Peru BBVA
        • Peru BCP
        • Peru BCP Efectivo
        • Peru Cell Power
        • Peru KasNet
        • Peru Plin
        • Peru QR Interoperable
        • Peru Yape
    • Pay Out Examples
      • Argentina
        • Argentina Instant Transfer
      • Bolivia
        • Bolivia Bank Transfer
      • Brazil
        • Brazil PIX
      • Chile
        • Chile Bank Transfer
      • Colombia
        • Colombia Bank Transfer
      • Ecuador
        • Ecuador Bank Transfer
      • Guatemala
        • Guatemala Bank Transfer
      • Mexico
        • Mexico SPEI
      • Peru
        • Peru Bank Transfer
    • Schemas
      • Pay In
        • Country
        • Currency
        • PaymentMethod
        • MerchantOrderReference
        • MerchantTransactionReference
        • ReturnUrls
        • CreatePayInRequest
        • PaymentInstructions
        • CreatePayInResponse
      • Country
      • Code
      • CreatePayInRequest
      • Currency
      • CreatePayInResponse
      • CreatePayOutRequest
      • CreatePayOutResponse
      • MerchantTransactionReference
      • MerchantOrderReference
      • ErrorDetail
      • PaymentInstructions
      • PaymentMethod
      • ReturnUrls
      • Message
      • ValidationErrorDetail
      • ValidationErrorItem
  1. Pay In

MerchantOrderReference

Identifier for a single customer payment session (order). Groups multiple payment attempts; multiple transactions may share the same order reference. Must be unique per order.

"ORDER-2026-0001"
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