What Happens After You Receive an EDI Purchase Order?

Last Updated on October 2, 2026 by Tatyana Vandich

Receiving an EDI Order Is Only the First Step

For many businesses, EDI (Electronic Data Interchange) starts with a customer.

A retailer, distributor, manufacturer, or other trading partner may ask a supplier to exchange purchase orders, invoices, shipping notices, and other business documents electronically. For smaller suppliers, this often happens when they begin working with a larger trading partner that already has an established EDI program.

Implementing EDI solves an important part of the process: the purchase order can arrive electronically instead of being emailed, downloaded, printed, or manually entered.

But receiving the order is only the beginning.

What happens to the EDI purchase order after it arrives?

That depends largely on the systems and processes the business already has.

What Is an EDI 850 Purchase Order?

The EDI 850 is the ANSI X12 transaction set used to communicate a purchase order electronically between trading partners.

An 850 can contain information such as:

• Purchase order number
• Product or item identifiers
• Quantities
• Prices or costs
• Requested dates
• Ship-to information
• Other data required by the trading partner’s implementation guide

In a typical supplier scenario, the flow looks like this:

Buyer → EDI 850 Purchase Order → Supplier

The supplier’s EDI solution receives the transaction and processes it according to the trading partner’s requirements. From there, the order information can move into an ERP, an EDI portal, or another business application.

That is where EDI implementations begin to differ.

When the EDI Order Goes Into an ERP

For a company that already uses an ERP, EDI can be integrated with the system that manages its operational data.

A simplified workflow may look like:

EDI 850 → EDI Translation & Integration → ERP → Sales Order → Fulfillment

The EDI transaction is translated and mapped into the format required by the ERP. Depending on the implementation, the information can then be used to create or update a sales order without requiring an employee to re-enter the purchase order manually.

The exact workflow depends on the ERP, the trading partner, the implementation requirements, and the company’s internal processes.

Businesses using systems such as SAP, Oracle, JD Edwards, Microsoft Dynamics, or other business applications can integrate EDI transactions with those systems so that order information becomes part of the processes that use it.

This is an important distinction: EDI integration is not simply about moving a file from one place to another. It connects transaction data with the business process that needs it.

For businesses handling high order volumes or using the same information across multiple systems or departments, that connection can be particularly important.

What Happens When a Business Uses EDI Without an ERP?

Not every company that needs EDI has an ERP.

A small manufacturer, food producer, distributor, or product company may operate with a combination of accounting software, spreadsheets, email, and other tools.

In that environment, an EDI purchase order can be received electronically, but the business still needs to work with the information it contains.

For example:

Which product does the buyer’s item number represent?

How many units were ordered?

What inventory is available?

Where should the order be tracked?

What needs to happen before shipment?

How will the order eventually be invoiced?

An EDI web portal can provide a practical way to receive, view, send, and process EDI transactions through a browser, without requiring a full ERP.

That can be a useful model for smaller businesses that need to meet a customer’s EDI requirements but do not need the broader scope of an ERP.

The next challenge is connecting the order information with the company’s own products, inventory, and sales processes.

From the EDI Order to Products and Inventory

An EDI purchase order tells the supplier what the customer wants to buy. The supplier still needs to connect those items with its own product information.

A trading partner may use a UPC, GTIN, vendor item number, or another identifier, while the supplier uses its own SKU or product code.

Those identifiers need to be correctly associated as part of the EDI implementation and ongoing order processing.

Product information can also include descriptions, pricing, case quantities, pack information, and other attributes required by the business or trading partner.

Inventory creates another step.

Suppose an order arrives for 100 units. The supplier needs to know whether those units are available, already committed to another customer, in production, expected from a supplier, or otherwise unavailable for immediate fulfillment.

When product, order, and inventory information are maintained separately, employees may need to move between systems or spreadsheets to determine what can actually be fulfilled.

A more connected workflow can look like:

EDI Purchase Order → Product → Sales Order → Inventory → Fulfillment

The exact process varies by business, but the goal is to make the information from the incoming order usable throughout the processes that follow it.

The EDI 850 Is Only One Part of the Order Cycle

A purchase order is usually part of a larger exchange between trading partners.

Depending on the industry and customer requirements, a business may use:

• EDI 850 — Purchase Order
• EDI 855 — Purchase Order Acknowledgment
• EDI 856 — Advance Ship Notice
• EDI 810 — Invoice
• EDI 997 — Functional Acknowledgment

Other transactions may be used when an order changes. For example, the EDI 860 can communicate a purchase order change, while the EDI 865 can be used in connection with a seller’s acknowledgment or request related to a purchase order change.

A simplified retail flow might look like:

EDI 850 → EDI 855 → EDI 856 → EDI 810

But this is not a universal sequence. The required documents depend on the trading partner and the business process.

The practical point is that the EDI 850 is one transaction within a broader commercial workflow, not a standalone event.

What Changes in Grocery EDI?

Grocery is a good example of why EDI requirements need to be considered in the context of a specific trading partner.

The EDI 875 is the ANSI X12 transaction set specifically designed for a grocery products purchase order. Depending on the customer and business flow, a grocery supplier may therefore work with an EDI 875 rather than a standard EDI 850.

Retailers can also use different transaction flows for different supplier programs.

For example, Wegmans publishes different EDI flows for its supplier operations, including EDI 875/EDI 856/EDI 880 for its warehouse flow and EDI 850/EDI 856/EDI 810 for certain other supplier processes. Its supplier documentation also addresses product data alignment, including information such as UPC, GTIN, cost, case, and pack information.

Kroger likewise documents supplier EDI requirements involving both EDI 850 and EDI 875 purchase orders, along with invoice transactions such as EDI 810 and EDI 880.

These examples illustrate an important point:

There is no single EDI workflow that applies to every retailer or supplier.

The transaction sets, data requirements, and processing steps depend on the trading partner, industry, and business relationship.

Comparing Common EDI Operating Models

The best approach depends on what the business already has and how much of its operation needs to be connected.

These models can also evolve over time.

A company may start with an EDI portal and later add integrations as its order volume, product catalog, or trading-partner requirements become more complex.

The important consideration is not simply how the order enters the business, but what the business needs to do with the information after that point.

Why We Expanded the EDI Web Portal Into POINT

This is also the thinking behind POINT, a Business Operations Platform.

After more than 25 years working with EDI implementations and business system integration, we have seen businesses adopt systems one requirement at a time.

A customer requires EDI. The business adds an EDI solution. Product information remains in a spreadsheet. Inventory is tracked somewhere else. Sales orders may be handled through another system.

Over time, the challenge is no longer simply exchanging EDI documents. It is keeping the operational information connected.

POINT brings together:

• EDI & Business Connectivity
• Product Management
• Inventory Management
• Sales & Order Management
• AI-powered Demand Forecasting

The platform is designed for businesses that need more structure around these operational functions without necessarily taking on the scope of a traditional ERP.

For a company already using an EDI web portal, this can provide a path toward connecting EDI with the products, orders, inventory, and other information surrounding each transaction.

From EDI Purchase Order to Business Process

An EDI purchase order can start a much larger business workflow:

Purchase Order → Product → Sales Order → Inventory → Fulfillment → Shipment → Invoice

For a business with an ERP, EDI integration can connect that workflow to existing systems.

For a business without an ERP, an EDI portal can provide a practical environment for receiving and processing transactions, while other tools handle additional operational functions.

For businesses looking to bring more of those functions together, a business operations platform can connect EDI with products, orders, inventory, and related processes.

The key question is therefore not simply how the purchase order arrives.

It is what the business needs to do with the information once it gets there.

After more than 25 years working with EDI and business system integration, this is one of the most important distinctions we see: successful EDI is not only about exchanging documents. It is about fitting those transactions into the way the business actually operates.

EDI Purchase Order: Frequently Asked Questions

What is an EDI 850 purchase order?

An EDI 850 is the ANSI X12 transaction set used to communicate a purchase order electronically between trading partners. It can contain product identifiers, quantities, prices, dates, and other information required by the trading partner.

What happens after an EDI 850 is received?

The transaction is received, validated, and translated according to the trading partner’s requirements. The resulting order information can then be integrated with an ERP, processed through an EDI portal, or connected with another business application.

Does an EDI purchase order automatically create a sales order?

It can when the EDI solution is integrated with an ERP or order-management system. Without that integration, additional processing may be required before the purchase order becomes an internal sales order.

What EDI documents are commonly used with an 850?

Common related transactions include the 855 Purchase Order Acknowledgment, 856 Advance Ship Notice, 810 Invoice, and 997 Functional Acknowledgment. An 860 Purchase Order Change and related transactions may also be used when an order changes.

Can a small business use EDI without an ERP?

Yes. An ERP is not required simply to exchange EDI. An EDI web portal can provide a way to receive and process electronic transactions, while other systems or business applications can manage products, orders, inventory, and fulfillment.

What is the difference between EDI 850 and EDI 875?

Both are ANSI X12 purchase-order transaction sets, but they serve different purposes. The 850 is the general Purchase Order transaction set, while the 875 is specifically designed for grocery products purchase orders. The transaction used depends on the trading partner and business process.

Does EDI replace an ERP?

No. EDI and ERP systems serve different purposes. EDI handles the electronic exchange of structured business documents between trading partners, while an ERP manages a broader range of internal business processes. EDI can be integrated with an ERP, but the two are not the same type of system.

What should a business do after receiving an EDI purchase order?

The business needs to process the order according to its trading-partner requirements and internal workflow. This may include matching products, checking inventory, creating or updating a sales order, preparing fulfillment, sending required EDI responses, and eventually invoicing the customer.

See How POINT Fits Your EDI Workflow

Want to see what happens after an EDI order arrives in a more connected environment?

Book a POINT demo to see how EDI, products, inventory, and sales/order management can work together in one business operations platform.

Tatyana Vandich Marketing Manager

Tatyana Vandich is a marketing and business technology expert specializing in EDI, B2B integration, and digital transformation. She helps companies automate supply chain operations and achieve seamless data exchange through practical, experience-based insights.

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Electronic Data Interchange (EDI) EDI X12 Standard EDIFACT Standard B2B Integration Digital Transformation in Business Supply Chain Automation