SALE INVOICE PREVIEW PROBLEM

Hello

I create crystal Layout for sale Invoice & it working properly when i run it outside from SAP

When i attach in SAP through report & Layout Manager in SAP 8,81 PL 07 it work properly here also

but when i preview Sale Invoice window occur to enter doc No when i put doc no of sale invoice it show the result

but i want it show directly when i preview the sale Invoice

in crystal Report selection i create

{OINV.DocNum} = {?DocEntry}

DocEntry is a parameter field & Type is Number & List of Value is Static