Order Setup Service The ics_paypal_ec_order_setup service is used only for custom orders. The ics_paypal_ec_order_setup service: ■ Sets up an order in anticipation of one or more authorizations. ■ Returns a transaction ID. When you request ics_paypal_ec_order_setup, you must include the following fields in the request: ■ ics_applications ■ merchant_id ■ merchant_ref_number ■ currency ■ grand_total_amount or at least one offer line with an amount field To enable offer-level fields, contact CyberSource Customer Support to have your account configured for this feature. For important information about offers and subtotals, see Requirements for the Subtotal. ■ paypal_customer_email ■ paypal_ec_set_request_id ■ paypal_ec_set_request_token ■ paypal_payer_id ■ paypal_token Additional fields are optional. The required and optional fields are described in Appendix A, API Fields.