Messages in ICF Servers
- HTTP request handler for HTTP requests
- APC handler for WebSocket requests
Programs or procedures are called in the handlers are executed in the according to the service context and their messages behave accordingly.
Dialog processing or list processing can only take place for an HTTP server if the Service Data → GUI Link setting for the service is set to "Yes" in the transaction SICF. Messages of the types "I", "S", and "W" are always ignored by default and messages of the types "A", "E", and "X" always terminate processing followed by a database rollback.