Created by Jerry Wang, last modified on Jan 14, 2015
B: target BO只拥有source BO的text的引用，但是target BO 的text发生change之后，这个reference就broken。
changed text in ship - to party:
The text in target Sales order also changes automatically:
当手动修改target Sales order 的note之后：
此时再回到account view修改note后：
Sales order的header note不会发生任何变化