Here we would like to draw your attention to SOST transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).SOST is a transaction code used for SAPconnect Send Requests in SAP.
It comes under the package SO.When we execute this transaction code, SAPLSBCS_OUT is the normal standard SAP program that is being executed in background.
Transaction SOST technical data table
|Purpose||SAPconnect Send Requests|