Terminal ID of the merchant (8 alphanumeric characters). Must always be the first field.

Password for the Terminal ID (provided by SportsPay).

Type of transaction (W for Web-Redirect).

Defines the action to perform. For this request, it will be StartSession.

Amount to transfer in dollar and cents (numeric with decimal).

Customer's name (max 40 characters; accepts alphanumeric, spaces, -, ', and .).

Customer's email address (max 60 characters; accepts standard email characters: alphanumeric and @ . ! # $ % + - _ { | } ~).

Platform-side customer identifier (max 40 characters; accepts alphanumeric, -, and _). Used to associate the transaction with a customer record in your system. Enables customer vaulting — payment methods saved under a CUSTID can be reused for future one-time or installment payments.

Unique value assigned to the payment session to avoid duplicate sessions (5-20 digits).

Language to display to the customer: E for English, F for French (defaults to English).

Unique reference number attached to the transaction (8-40 characters; accepts alphanumeric, -, and /). Must be unique within the current batch.

Invoice number associated with the transaction (5-20 alphanumeric characters). Acts as a transaction tag — does not need to be unique.

Description of payment (up to 60 characters; accepts alphanumeric, spaces, symbols and punctuation marks).

Program-level line items associated with the transaction. Appears in the Deposit Report to provide a breakdown of charges contributing to a deposit. Multiple PROGRAM entries may be included.

Player-level line items associated with the transaction. Appears in the Deposit Report alongside PROGRAM entries. Multiple PLAYER entries may be included.

Account-level line items associated with the transaction. Appears in the Deposit Report alongside PROGRAM and PLAYER entries. Multiple ACCOUNT entries may be included.

Platform Billing amount - Gateway applies as Platform Fee (added to transaction) if CustomerPay, or Platform Charge (deducted) if Merchant Pay. Amount in dollars and cents (mutually exclusive with PLATFEE and PLATCHRG)

Platform Fee - Amount to add to transaction amount in dollars and cents (mutually exclusive with PLATFORM and PLATCHRG).

Platform Charge - Amount to subtract from transaction amount in dollars and cents (mutually exclusive with PLATFORM PLATFEE).

The Split Payment information, formatted as multiple key-value pairs inside brackets. Each Split Payment entry must be enclosed in square brackets and can include multiple fields separated by &. Example format: [TRANGP=TESTGRP&RECV=DEVM0058&AMT=1.20&REF=12345678&MSG=DEMOTRANSFER].