Thanks Selim, dynamic Replenishment is active
But the Solution is in supplier dependent options... When we try to send demand data to more than one supplier and expecting to work based on Quota Arrangement set-up.. Select the Option "Source List Based on Contract" under Supplier dependent selection parameters.. and then run the program to have demand split to Multiple suppliers basis Quota Arrangement... 2 IDOC of type PROACT will be created supplier wise respectively.