Issue in Kit to Stock

Hi,

      I have configured the system for Kit to Stock. When I created an order, it has created one Inbound & Outbound delivery in EWM as expected. The deliveries should be also created in ECC. I checked the ECC system and I see the inbound delivery created but the outbound delivery got stuck in the queue(SMQ2) in ECC system. It gives the following error when I try to process it 'Error while determining ref.mov.type for WM via Table 156S: 601/X/X/ / /X/' . Can someone help me in resolving this?