Is it pssble to chck if the evnt was triggered in Bckgrd or Frgrd in WF.

Hi .... i am processing an idoc which creates a sales order and standard event is fired. This event is linked to a custom worflow.

Standard event of sales order create is also fired when SO is created by the user in foreground and this triggers my workflow.

My requirement is the workflow should only be triggered when SO is created using IDOC and not when user creates it manually from foreground.

Can somebody please help me in this ... thanks.