Refund Service The ics_paypal_refund service: ■ Enables you to perform a full refund for an order. ■ Enables you to perform multiple partial refunds for an order. When you request ics_paypal_refund, you must include the following fields in the request: ■ ics_applications ■ merchant_id ■ merchant_ref_number ■ grand_total_amount—The amount of the refund determines if it is a full refund or a partial refund. ■ paypal_capture_id ■ paypal_do_capture_request_id—This value determines which capture will be refunded. ■ paypal_do_capture_request_token Additional fields are optional. The required and optional fields are described in Appendix A, API Fields.