202 Secondary Mortgage Market Loan Delivery (007030)

This is the standard X12 007030 spec, with 13 loops and 72 segment positions, as OpenEDI JSON, an ediFabric C# template and an ediFabric Native model. To change it for a trading partner, customize it in the EDI Spec Builder.

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The spec as an OpenAPI 3 schema with x-openedi-* extensions, for ediFabric Native, ediFabric Cloud and the EDI Spec Builder. Download OpenEDI (145 KB) Generate classes

The ediFabric .NET template, class TS202. It needs the common segments, composites and codes of X12 007030, one download for every transaction in the version. Download C# (2 KB) Common files (232 KB)

The intermediary model ediFabric Native loads with set_map. Download Native (109 KB)

Use the 202 spec in your code

ediFabric .NET

Add the C# template and its common files to your project, or reference the template NuGet package, and read 202 files into TS202 objects. See ediFabric .NET.

ediFabric Native

Map version 007030 to the Native model with set_map, then parse 202 files to JSON from Python, Java, C or C#. See Convert between EDI and JSON.

OpenEDI

Select Customize in Spec Builder to copy the spec under your own name, change it for your partner, and parse files against it in EdiNation, ediFabric Native or ediFabric Cloud. Read about OpenEDI.

Generate 202 classes in Python, Java, Node.js, Go, Rust or C

ediFabric Native returns each 202 as JSON, with the property names of the OpenEDI schema. To work with that JSON as typed objects, generate classes from the OpenEDI file in your language and deserialize the JSON into TS202. Serialize the objects back to JSON to build EDI with ediFabric Native. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats, so validate files with ediFabric Native. Read more in Generate a class from OpenEDI.

Python: datamodel-code-generator. Node.js: openapi-typescript. Java, Go, Rust and C: OpenAPI Generator.

202 structure

Loops and segments of the standard 202, with their usage and maximum repeats.

ID	Name	Usage	Max use
ST	Transaction Set Header	Mandatory	1
BGN	BGN	Mandatory	1
TRN	TRN	Optional	1
DTP	DTP	Optional	1
Loop N1	N1	Optional	5
N1	N1	Mandatory	1
N2	N2	Optional	1
N3	N3	Optional	2
N4	N4	Optional	1
REF	REF	Optional	3
PER	PER	Optional	2
Loop N9	N9	Mandatory	99999
N9	N9	Mandatory	1
Loop DEX	DEX	Mandatory	99999
DEX	DEX	Mandatory	1
REF	REF	Mandatory	15
CN1	CN1	Optional	1
PCT	PCT	Optional	10
INT	INT	Optional	10
AMT	AMT	Optional	4
QTY	QTY	Optional	5
MPP	MPP	Optional	1
DTP	DTP	Optional	10
III	III	Optional	15
Loop ASM	ASM	Optional	99999
ASM	ASM	Mandatory	1
N1	N1	Optional	1
REF	REF	Optional	5
Loop NM1	NM1	Mandatory	99999
NM1	NM1	Mandatory	1
Loop LX	LX	Mandatory	99999
LX	LX	Mandatory	1
REF	REF	Optional	15
AMT	AMT	Optional	20
DTP	DTP	Optional	5
YNQ	YNQ	Optional	10
QTY	QTY	Optional	5
N1	N1	Optional	6
III	III	Optional	50
LUC	LUC	Optional	1
RLD	RLD	Optional	50
INT	INT	Optional	6
PPD	PPD	Optional	1
PWK	PWK	Optional	2
BUY	BUY	Optional	1
PEX	PEX	Optional	10
BEP	BEP	Optional	2
Loop IGI	IGI	Optional	99999
IGI	IGI	Mandatory	1
REF	REF	Optional	1
PCT	PCT	Optional	10
Loop NX1	NX1	Optional	99999
NX1	NX1	Mandatory	1
NX2	NX2	Optional	15
REA	REA	Optional	1
PDS	PDS	Optional	2
Loop LN1	LN1	Optional	5
LN1	LN1	Mandatory	1
YNQ	YNQ	Optional	1
DTP	DTP	Optional	5
REF	REF	Optional	10
Loop CRC	CRC	Optional	99999
CRC	CRC	Mandatory	1
IN1	IN1	Optional	1
IN2	IN2	Optional	30
DMG	DMG	Optional	1
QTY	QTY	Optional	10
N1	N1	Optional	1
YNQ	YNQ	Optional	5
AIN	AIN	Optional	10
AMT	AMT	Optional	15
Loop SCM	SCM	Optional	99999
SCM	SCM	Mandatory	1
SCS	SCS	Optional	5
Loop PAM	PAM	Optional	4
PAM	PAM	Mandatory	1
YNQ	YNQ	Mandatory	1
REF	REF	Mandatory	1
Loop UWI	UWI	Optional	5
UWI	UWI	Mandatory	1
III	III	Optional	10
REF	REF	Optional	1
MSG	MSG	Optional	99999
CTT	CTT	Optional	1
SE	Transaction Set Trailer	Mandatory	1