属性
数据类型N
必须?Optional
长度Min 2 / Max 2
Element
X12 EDI Release 00401
G23
713Installment Group Indicator
The installment group indicator is a 2-digit serial number beginning with 01 (i.e., 01, 02, 03 or 04); it is used to group "elective"terms types in an installment payment situation; the same indicator must be used for all segments in the same installment
