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RE: Re: Interchage control number sequence.
From the manual:
ASC X12
X12.5 Interchange Control Structures
Section 5.1.1
..."the interchange control number value (ISA13) shall by themselves be
unique within a reasonably extended time frame whose boundries shall be
defined by trading partner agreement. Because at some point it may be
necessary to reuse a sequence of control numbers, the Interchange Date
and Time may serve as an additional discriminant only to differentiate
interchange identity over the longest possible time frame."
====================================================================
From Experience:
The ISA and GS control values need not be in sequence to satisify the
X12 standard, just unique for a period of time. However, don't expect
your trading partner to detect missing interchanges or groups. If your
controls are ordered, some of your partners will call you if there is a
sequence abnormality. Sequential interchanges and groups are more
common than not.
-----------------
--- Paul McTeigue < wrote:
> Yajun:
>
> Do not pay any attention to that smart-aleck reply, Yajun.
>
> I have been in EDI for 12 years including writing my own
> commercial translator and that is not a dumb question.
>
> Happy programming. It's hard, but not that hard, and the
> only stupid question is the unasked one.
>
> Cheers,
> Paul McTeigue
>
>
>
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