Problem facing to uploading long PO text through bdc

Dear All,

I am facing Problem to uploading long PO text through bdc . My PO text is belong to 500 Characters but while i am uploading this through bdc it give me the message your text is longer than line.

the line takes 80 Character. So how i break the text that first 80 Character in first row and after that selection of second line then third and fourth.

Thanks,

Pankaj