501 Vendor Performance Review (005050)
This is the standard X12 005050 spec, with 12 loops and 40 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 501 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 501 files into TS501 objects. See ediFabric .NET.
ediFabric Native
Map version 005050 to the Native model with set_map, then parse 501 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 501 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 501 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 TS501. 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.
501 structure
Loops and segments of the standard 501, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| BGN | Beginning Segment | Mandatory | 1 |
| NTE | Note/Special Instruction | Optional | >1 |
| Loop N1 | Party Identification | Optional | >1 |
| N1 | Party Identification | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Party Location | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| PER | Administrative Communications Contact | Optional | >1 |
| REF | Reference Information | Optional | >1 |
| DTP | Date or Time or Period | Optional | >1 |
| Loop LM | Code Source Information | Optional | >1 |
| LM | Code Source Information | Mandatory | 1 |
| LQ | Industry Code Identification | Mandatory | >1 |
| Loop CRT | Contractor Report Type | Optional | >1 |
| CRT | Contractor Report Type | Mandatory | 1 |
| Loop REF | Reference Information | Optional | >1 |
| REF | Reference Information | Mandatory | 1 |
| DTP | Date or Time or Period | Optional | >1 |
| SPR | Supplier Rating | Optional | >1 |
| Loop N1 | Party Identification | Optional | >1 |
| N1 | Party Identification | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Party Location | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| PER | Administrative Communications Contact | Optional | >1 |
| Loop DTP | Date or Time or Period | Optional | >1 |
| DTP | Date or Time or Period | Mandatory | 1 |
| QTY | Quantity Information | Optional | >1 |
| Loop LM | Code Source Information | Optional | >1 |
| LM | Code Source Information | Mandatory | 1 |
| LQ | Industry Code Identification | Mandatory | >1 |
| DTP | Date or Time or Period | Optional | >1 |
| Loop LS | Loop Header | Optional | 1 |
| LS | Loop Header | Mandatory | 1 |
| Loop QTY | Quantity Information | Optional | >1 |
| QTY | Quantity Information | Mandatory | 1 |
| MEA | Measurements | Optional | >1 |
| PCT | Percent Amounts | Optional | >1 |
| NTE | Note/Special Instruction | Optional | >1 |
| LE | Loop Trailer | Mandatory | 1 |
| Loop REF | Reference Information | Optional | >1 |
| REF | Reference Information | Mandatory | 1 |
| Loop QTY | Quantity Information | Optional | >1 |
| QTY | Quantity Information | Mandatory | 1 |
| DTP | Date or Time or Period | Optional | >1 |
| AMT | Monetary Amount Information | Optional | >1 |
| NTE | Note/Special Instruction | Optional | >1 |
| Loop LM | Code Source Information | Optional | >1 |
| LM | Code Source Information | Mandatory | 1 |
| LQ | Industry Code Identification | Mandatory | >1 |
| SE | Transaction Set Trailer | Optional | 1 |