851 Lease Schedule (003020)
This is the standard X12 003020 spec, with 3 loops and 38 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.
Use the 851 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 851 files into TS851 objects. See ediFabric .NET.
ediFabric Native
Map version 003020 to the Native model with set_map, then parse 851 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 851 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 851 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 TS851. 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.
851 structure
Loops and segments of the standard 851, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| BLS | Beginning Segment for Lease Schedule | Mandatory | 1 |
| MSG | Message Text | Optional | 100 |
| CUR | Currency | Optional | 1 |
| N9 | Reference Number | Optional | >1 |
| TXI | Tax Information | Optional | 7 |
| TAX | Tax Reference | Optional | 5 |
| PAM | Period Amount | Optional | 100 |
| ITA | Allowance, Charge or Service | Optional | 35 |
| DTM | Date/Time Reference | Optional | 10 |
| Loop N1 | Name | Mandatory | 100000 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Address Information | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| N9 | Reference Number | Optional | >1 |
| PER | Administrative Communications Contact | Optional | 3 |
| Loop LS1 | Lease Item Identification | Mandatory | >1 |
| LS1 | Lease Item Identification | Mandatory | 1 |
| LIN | Item Identification | Optional | 1 |
| PO3 | Additional Item Detail | Optional | 25 |
| PID | Product/Item Description | Optional | 1000 |
| CUR | Currency | Optional | 1 |
| CTP | Pricing Information | Optional | 5 |
| N9 | Reference Number | Optional | >1 |
| TXI | Tax Information | Optional | 7 |
| TAX | Tax Reference | Optional | 5 |
| PAM | Period Amount | Optional | 25 |
| ITA | Allowance, Charge or Service | Optional | 35 |
| DTM | Date/Time Reference | Optional | 10 |
| AMT | Monetary Amount | Optional | 5 |
| Loop N1 | Name | Optional | >1 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Address Information | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| N9 | Reference Number | Optional | >1 |
| PER | Administrative Communications Contact | Optional | 3 |
| CTT | Transaction Totals | Mandatory | 1 |
| AMT | Monetary Amount | Optional | 1 |
| SE | Transaction Set Trailer | Optional | 1 |