SAP ABAP Class CL_APC_WS_SYSTEM_MESSAGES (ABAP Push Channel for system messages) is used by

• Class (3)
• Function Module (1)
• PINF (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	PINF	SABAP_CHANNELS_PUBLIC	SABAP_CHANNELS_PUBLIC	SABAP_CHANNELS	BASIS	SAP_BASIS
2	PINF	SAPC_APPLICATION_PUBLIC	SAPC_APPLICATION_PUBLIC	SAPC_APPLICATION	BASIS	SAP_BASIS
3	PINF	SAPC_PUBLIC	SAPC_PUBLIC	SABAP_PUSH_CHANNELS	BASIS	SAP_BASIS