To start and identify an interchange of zero or more functional groups and interchange-related control segments
Costco X12 850 Purchase Order
X12 850 (Purchase Order) is the EDI transaction exchanged between Costco (Costco (ISA: 12/2068288100)) and its trading partners. Stacksync handles full compliance, mapping, and real-time delivery.
- Segments
- 20
- Loops
- 6
- X12 850
- All partners ↗
Transaction context
Where 850 Purchase Order fits on Costco (ISA: 12/2068288100)
On Costco (ISA: 12/2068288100), the X12 850 Purchase Order precedes the 856 Ship Notice Manifest and 810 Invoice in the Order-to-cash cycle.
- Costco channels
- 9 of 12
- Trading partners
- 389
- Channels
- 516
9 of Costco's 12 channels carry 850
partners across the Stacksync network trade 850
channels network-wide carry 850
Most common alongside 850
The 850 is the electronic purchase order a buyer sends to formally request goods or services, carrying items, quantities, prices, ship-to locations, and requested dates. It initiates the order-to-cash cycle and is the reference document that the acknowledgment (855), ship notice (856), and invoice (810) must reconcile against. Trading partners require it because a machine-readable PO removes manual re-keying and the wrong-item, wrong-quantity errors that come with it. Sent by the buyer (retailer, distributor, or manufacturer procurement) to the supplier or vendor fulfilling the order.
When it fires: A buyer's procurement or replenishment system releases an approved order for goods to a specific supplier.
Common 850 rejection causes
- Ship-to addresses or location codes that do not exist in the seller's system, causing the order to fail validation or ship to the wrong warehouse.
- Item identifiers referencing discontinued SKUs or UPCs that do not match the seller's catalog, forcing manual intervention.
- PO line prices that do not match the agreed contract price in the seller's system, triggering business-level rejection on the 855.
- Missing or malformed mandatory segments or data elements, rejected on receipt via the 997, and duplicate PO numbers that confuse order processing.
Specification summary
X12 850 Purchase Order at the element level
The X12 850 specification defines 71 segments carrying 282 data elements, 84 of which are mandatory.
- Segments
- 71
- Data elements
- 282
- Mandatory elements
- 84
| Segment | Elements | Mandatory |
|---|---|---|
| BEG | 5 | 4 |
| CUR | 5 | 2 |
| REF | 3 | 1 |
| FOB | 7 | 1 |
| SAC | 11 | 1 |
| DTM | 4 | 1 |
| PID | 4 | 1 |
| TXI | 8 | 1 |
| N9 | 3 | 1 |
| MSG | 2 | 1 |
Key identifiers in 850
- Transaction Set Purpose Code
- Purchase Order Type Code
- Purchase Order Number
- Date
- Entity Identifier Code
- Currency Code
- Reference Identification Qualifier
- Shipment Method of Payment
Full segment guideline — 20 segments 6 loops · X12 850 Purchase Order
To indicate the beginning of a functional group and to provide control information
To indicate the start of a transaction set and to assign a control number
To indicate the beginning of the Purchase Order Transaction Set and transmit identifying numbers and dates
To specify identifying information
To specify transportation instructions relating to shipment
SAC Loop Repeat: 25
To request or identify a service, promotion, allowance, or charge; to specify the amount or percentage for the service, promotion, allowance, or charge
To specify terms of sale
To specify pertinent dates and times
To specify the carrier and sequence of routing and provide transit time information
N9 Loop Repeat: 1,000
To transmit identifying information as specified by the Reference Identification Qualifier
To provide a free-form format that allows the transmission of text information
N1 Loop Repeat: 200
To identify a party by type of organization, name, and code
To specify the location of the named party
To specify the geographic place of the named party
To identify a person or office to whom administrative communications should be directed
PO1 Loop Repeat: 100,000
To specify basic and most frequently used line item data
PID Loop Repeat: 1,000
To describe a product or process in coded or free-form format
CTT Loop Repeat: 1
To transmit a hash total for a specific element in the transaction set
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)
Trading partners
8+ trading partners.
And every channel covered.
We connect to every major retailer, distributor, and 3PL on the EDI network. Type to search the directory, or browse the full catalogue.
CO Costco Wholesale (Canada) CO Costco Merchandise US - Direct (IBM) - NEW CO Costco Merchandise Canada - Direct (IBM)(OLD) CO Costco Merchandise US - Direct via IBM VAN (OLD) CO Costco Wholesale Canada CO Costco Merchandise Canada - Direct (via IBM)(NEW) CO Costco Dropship (via Commerce Hub) CO Costco Wholesale - US
No trading partner matches your search.
Browse the full directory
Trading partners
4+ trading partners.
And every channel covered.
We connect to every major retailer, distributor, and 3PL on the EDI network. Type to search the directory, or browse the full catalogue.
No trading partner matches your search.
Browse the full directory
Costco Costco (ISA: 12/2068288100) EDI 850 FAQ
Common questions about 850 Purchase Order on the Costco (ISA: 12/2068288100) channel.
What is X12 850 Purchase Order?
X12 850 (Purchase Order) is the EDI transaction set used to exchange purchase order data. Costco's Costco (ISA: 12/2068288100) channel requires it from trading partners.
Does Costco Costco (ISA: 12/2068288100) require 850 for trading partners?
Yes, Costco (Costco (ISA: 12/2068288100)) supports X12 850 Purchase Order. Stacksync handles the full integration so your team can focus on operations.
How fast can I integrate Costco 850 with Stacksync?
Most companies go live with Costco 850 on Stacksync in days. Pre-built mappings, no-code setup, and real-time monitoring make EDI compliance straightforward.
Which other Costco channels accept 850?
X12 850 runs on 9 of Costco's 12 channels. Besides Costco (ISA: 12/2068288100), it is accepted on Costco Wholesale (Canada), Costco Merchandise US - Direct (IBM) - NEW, Costco Merchandise Canada - Direct (IBM)(OLD), Costco Merchandise US - Direct via IBM VAN (OLD), Costco Wholesale Canada, Costco Merchandise Canada - Direct (via IBM)(NEW), Costco Dropship (via Commerce Hub), Costco Wholesale - US. Each channel carries its own implementation guideline; Stacksync validates outbound documents against the correct guideline automatically.
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