Issue with long text in infotypes

Hi All

I have seen many threads where facing issues with updating long text in infotypes . Pre requisite to update long text in infotype is ,must have  field ITXEX = 'X'  in PA table for the  specific record which infotype text to be updated . For this  I have submitted a document below is the document .

http://scn.sap.com/docs/DOC-40809

Thanks

Kamesh