hi siddharth
we havent seen any errors on the odata or gateway.
all services are active and both odata (taskprocessing services are active)
in Tcode SWFVISU i have changed it to below ....earlier on some discussion had stated we use the STD bsp. i have also maintained the WFSTEP table
we are currently on EAHRGXX 608 sp18
what else can i do? 
regards kajoe