4D Payments SDK 2016 .NET Edition

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PurchaseIdentifier Property

Optional purchase order number assigned by the merchant.


public string PurchaseIdentifier { get; set; }
Public Property PurchaseIdentifier As String

Default Value



In this field the merchant may assign an optional Purchase Identifier. This field must contain digits, and will be automatically left-justified, space-filled to 25 spaces.

This field is applicable to E-Commerce, Hotel, and Auto Rental transactions.

Note: For the Hotel IndustryType, this property will contain the Hotel Folio Number. For the Auto Rental IndustryType, it should indicate the Rental Agreement Number.

Failure to set a PurchaseIdentifier for the e-commerce IndustryType may result in a CPS downgrade when the transaction is settled. This can result in higher interchange rates.

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4D Payments SDK 2016 .NET Edition - Version 16.0 [Build 8017]