1. What is EDI?
  2. General / SAP
    1. Terms & Definitions
    2. Common Transactions
    3. IMG Settings
    4. IDocs
      1. What are they?
      2. Generic IDoc Structure
      3. Status Codes
      4. Customizing the IDoc
    5. Testing & Looking at data
  3. EDI Subsystem
    1. What are they?
    2. Do I need one?
    3. Who makes them?
    4. Port Types & Setup
  4. Inbound EDI Setup
    1. Partner Definition
    2. Workflow
  5. Outbound EDI Setup
    1. Partner Definition
    2. Outbound Message Control (SD & MM)
  6. Common Mappings
    1. X.12 850 (004010) to ORDERS04
  7. Variant Config Considerations
  8. Misc. Tips and Good Information

Further reading:

  1. Web
    1. SAP Help Portal
    2. ERPgenie SAP EDI Section
    3. Max Efimov's SAP EDI site
  2. Books
    1. ALE, EDI, & IDoc Technologies for SAP (Arvind Nagpal with John Pitlak)