scenario development help

hi,

i am in sap 7.3 java stack.

scenario is :

1 sender - A msg map - A receiver

same sender - B msg map - B receiver

so 1 sender has to use 2 different msg maps to send to 2 different receiver.

Then response of B comes and need to be sent back to A and the sender.

Can we do it without using BPM ?

Regards