855 Purchase Order Acknowledgment (003050)
This is the standard X12 003050 spec, with 14 loops and 124 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 855 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 855 files into TS855 objects. See ediFabric .NET.
ediFabric Native
Map version 003050 to the Native model with set_map, then parse 855 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 855 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 855 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 TS855. 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.
For a sample file, the same data as JSON, and code to parse, validate and generate the 855, see the 855 transaction guide.
855 structure
Loops and segments of the standard 855, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| BAK | Beginning Segment for Purchase Order Acknowledgment | Mandatory | 1 |
| NTE | Note/Special Instruction | Optional | 100 |
| CUR | Currency | Optional | 1 |
| REF | Reference Numbers | Optional | >1 |
| PER | Administrative Communications Contact | Optional | 3 |
| TAX | Tax Reference | Optional | >1 |
| FOB | F.O.B. Related Instructions | Optional | >1 |
| CTP | Pricing Information | Optional | >1 |
| PAM | Period Amount | Optional | 10 |
| CSH | Header Sale Condition | Optional | 1 |
| Loop SAC | Service, Promotion, Allowance, or Charge Information | Optional | 25 |
| SAC | Service, Promotion, Allowance, or Charge Information | Mandatory | 1 |
| CUR | Currency | Optional | 1 |
| ITD | Terms of Sale/Deferred Terms of Sale | Optional | 5 |
| DIS | Discount Detail | Optional | 20 |
| INC | Installment Information | Optional | 1 |
| DTM | Date/Time Reference | Optional | 10 |
| LDT | Lead Time | Optional | 12 |
| LIN | Item Identification | Optional | 5 |
| SI | Service Characteristic Identification | Optional | 2 |
| PID | Product/Item Description | Optional | 200 |
| MEA | Measurements | Optional | 40 |
| PWK | Paperwork | Optional | 25 |
| PKG | Marking, Packaging, Loading | Optional | 25 |
| TD1 | Carrier Details (Quantity and Weight) | Optional | 2 |
| TD5 | Carrier Details (Routing Sequence/Transit Time) | Optional | 12 |
| TD3 | Carrier Details (Equipment) | Optional | 12 |
| TD4 | Carrier Details (Special Handling or Hazardous Materials or Both) | Optional | 5 |
| MAN | Marks and Numbers | Optional | 10 |
| TXI | Tax Information | Optional | >1 |
| Loop N9 | Reference Number | Optional | 1000 |
| N9 | Reference Number | Mandatory | 1 |
| MSG | Message Text | Optional | 1000 |
| Loop N1 | Name | Optional | 200 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Address Information | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| NX2 | Real Estate Property ID Component | Optional | 3 |
| REF | Reference Numbers | Optional | 12 |
| PER | Administrative Communications Contact | Optional | >1 |
| FOB | F.O.B. Related Instructions | Optional | 1 |
| TD1 | Carrier Details (Quantity and Weight) | Optional | 2 |
| TD5 | Carrier Details (Routing Sequence/Transit Time) | Optional | 12 |
| TD3 | Carrier Details (Equipment) | Optional | 12 |
| TD4 | Carrier Details (Special Handling or Hazardous Materials or Both) | Optional | 5 |
| PKG | Marking, Packaging, Loading | Optional | 25 |
| MSG | Message Text | Optional | >1 |
| Loop PO1 | Baseline Item Data | Optional | 100000 |
| PO1 | Baseline Item Data | Mandatory | 1 |
| SI | Service Characteristic Identification | Optional | 5 |
| CUR | Currency | Optional | 1 |
| PO3 | Additional Item Detail | Optional | 25 |
| CTP | Pricing Information | Optional | >1 |
| PAM | Period Amount | Optional | 10 |
| MEA | Measurements | Optional | 40 |
| Loop PID | Product/Item Description | Optional | 1000 |
| PID | Product/Item Description | Mandatory | 1 |
| MEA | Measurements | Optional | 10 |
| PWK | Paperwork | Optional | 25 |
| PO4 | Item Physical Details | Optional | >1 |
| REF | Reference Numbers | Optional | >1 |
| PER | Administrative Communications Contact | Optional | 3 |
| Loop SAC | Service, Promotion, Allowance, or Charge Information | Optional | 25 |
| SAC | Service, Promotion, Allowance, or Charge Information | Mandatory | 1 |
| CUR | Currency | Optional | 1 |
| IT8 | Conditions of Sale | Optional | 1 |
| ITD | Terms of Sale/Deferred Terms of Sale | Optional | 2 |
| DIS | Discount Detail | Optional | 20 |
| INC | Installment Information | Optional | 1 |
| TAX | Tax Reference | Optional | >1 |
| FOB | F.O.B. Related Instructions | Optional | >1 |
| SDQ | Destination Quantity | Optional | 500 |
| DTM | Date/Time Reference | Optional | 10 |
| LDT | Lead Time | Optional | 12 |
| TD1 | Carrier Details (Quantity and Weight) | Optional | 1 |
| TD5 | Carrier Details (Routing Sequence/Transit Time) | Optional | 12 |
| TD3 | Carrier Details (Equipment) | Optional | 12 |
| TD4 | Carrier Details (Special Handling or Hazardous Materials or Both) | Optional | 5 |
| Loop ACK | Line Item Acknowledgment | Optional | 104 |
| ACK | Line Item Acknowledgment | Mandatory | 1 |
| DTM | Date/Time Reference | Optional | 1 |
| MAN | Marks and Numbers | Optional | 10 |
| AMT | Monetary Amount | Optional | 1 |
| TXI | Tax Information | Optional | >1 |
| Loop PKG | Marking, Packaging, Loading | Optional | 200 |
| PKG | Marking, Packaging, Loading | Mandatory | 1 |
| MEA | Measurements | Optional | >1 |
| Loop SCH | Line Item Schedule | Optional | 200 |
| SCH | Line Item Schedule | Mandatory | 1 |
| TD1 | Carrier Details (Quantity and Weight) | Optional | 2 |
| TD5 | Carrier Details (Routing Sequence/Transit Time) | Optional | 12 |
| TD3 | Carrier Details (Equipment) | Optional | 12 |
| TD4 | Carrier Details (Special Handling or Hazardous Materials or Both) | Optional | 5 |
| Loop N9 | Reference Number | Optional | 1000 |
| N9 | Reference Number | Mandatory | 1 |
| MSG | Message Text | Optional | 1000 |
| Loop N1 | Name | Optional | 200 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Address Information | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| NX2 | Real Estate Property ID Component | Optional | 3 |
| REF | Reference Numbers | Optional | 12 |
| PER | Administrative Communications Contact | Optional | 3 |
| FOB | F.O.B. Related Instructions | Optional | 1 |
| SCH | Line Item Schedule | Optional | 200 |
| TD1 | Carrier Details (Quantity and Weight) | Optional | 2 |
| TD5 | Carrier Details (Routing Sequence/Transit Time) | Optional | 12 |
| TD3 | Carrier Details (Equipment) | Optional | 12 |
| TD4 | Carrier Details (Special Handling or Hazardous Materials or Both) | Optional | 5 |
| PKG | Marking, Packaging, Loading | Optional | 25 |
| Loop SLN | Subline Item Detail | Optional | 1000 |
| SLN | Subline Item Detail | Mandatory | 1 |
| SI | Service Characteristic Identification | Optional | 5 |
| PID | Product/Item Description | Optional | 1000 |
| PO3 | Additional Item Detail | Optional | 25 |
| CTP | Pricing Information | Optional | 25 |
| PAM | Period Amount | Optional | 10 |
| ACK | Line Item Acknowledgment | Optional | 104 |
| Loop SAC | Service, Promotion, Allowance, or Charge Information | Optional | 10 |
| SAC | Service, Promotion, Allowance, or Charge Information | Mandatory | 1 |
| CUR | Currency | Optional | 1 |
| DTM | Date/Time Reference | Optional | 10 |
| PO4 | Item Physical Details | Optional | 1 |
| TAX | Tax Reference | Optional | 3 |
| Loop N1 | Name | Optional | 10 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 2 |
| N3 | Address Information | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| NX2 | Real Estate Property ID Component | Optional | 3 |
| REF | Reference Numbers | Optional | 12 |
| PER | Administrative Communications Contact | Optional | 3 |
| CTT | Transaction Totals | Mandatory | 1 |
| AMT | Monetary Amount | Optional | 1 |
| SE | Transaction Set Trailer | Optional | 1 |