PayPal Express Checkout - 2013 Guia do Utilizador descarregar pdf (Página 26)

Billing Agreements and Reference Transactions

Obtaining the BAID Without Express Checkout Purchase

26 Express Checkout for Payflow

FIGURE 2.3 Obtaining the BAID without Express Checkout purchase

The message flow consists of the following comments, which correspond to the circled

numbers in

Figure 2.1. The comments pertain specifically to setting up a billing agreement and

obtaining a BAID.

1. When the buyer chooses to set up a billing agreement, call the Set Express Checkout

request (ACTION=S) and pass information about the agreement:

– The billing type (required)

– A description of the goods or services associated with the agreement (optional)

– The type of PayPal payment you require (optional)

– A string for your use in any way (optional)

NOTE: Even though the buyer is not making a purchase in this flow, provide a value for AMT,

for example,

AMT=0.00.

2. PayPal returns a TOKEN that you use in subsequent steps.

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PayPal Express Checkout - 2013 Guia do Utilizador Página 26