Inventory Management Issue

Hi Friends,

I'm working on inventory management.

I have activated my datasources in rsa5 and when i'm looking in LBWE i'm able to see only two data sources. (i.e., 2lis_03_bx) is not visible. When activating the data source i tried to create the append structure after that i thought that there is no use of creating the append structure i deleted it. But when we do for MCNB Tcode i'm unable to execute my data source and its showing any error like the append structure is not active.

Please Do help me.

Thanks & Regards,

Renu