My BDC is not uploading data in Backaground Process

Please friends..tell me some solution..!!

while uploading material, when i choose Call transaction and Processing Mode - Background Processing(N) It shows me the error, :

"No batch input data for the screen SAPLSP01 0300 "

and when i choose Display All screens(A) and Dislpay Errors(E) works...for that.

Please Help Me.