Forum Post: RE: sales invoice sub form

1. High Level code is

if "Document Type" = "Document Type"::Invoice then

 if NOT (Type in [Type::"",Type::Item]) THEN

    ERROR('error message');

2. You need to write code like

if "Document Type" = "Document Type"::Invoice then

 IF NOT CONFIRM(

   'Posting Date is %1.. Do you want to contineu?',FALSE,

   "Posting Date")

 THEN

   EXIT;