Section One - Introduction to SIM
Section Two - Transaction Data Requirements
Section Three - Submitting Transactions
Section Four - Receipt Options
Section Five - Additional API Fields
Section Six - Transaction Response
    Transaction Response
    Fields in the Payment Gateway Response
    Using the MD5 Hash Feature
    Response for Duplicate Transactions
    Response Code Details
    Response Reason Codes and Response Reason Text
Section Seven - Test Transactions
Appendix A - Fields by Transaction Type
Appendix B - Alphabetized List of API Fields