In this article, learn about:
The difference between supplier adoption rate and connection rate
How to calculate both metrics using existing transaction data
What the gap between connection and adoption can reveal about trading partner performance
For suppliers managing a growing network of retailers and trading partners, getting connected is an important moment of progress. An established EDI or API connection means the systems are ready to exchange orders, invoices, shipping information, and other business documents electronically.
Connection, however, doesn’t tell the full story of how those transactions are being handled. Some may flow automatically from one system to another, while others still require a portal, spreadsheet, or manual entry somewhere along the way.
Supplier connection rate and adoption rate help distinguish between the two.
Connection rate measures how much of the trading partner network has been enabled. Adoption rate measures how much actual transaction activity is using those connections.
Together, the two provide a more complete picture of how electronic trading partner processes are working in practice.
Supplier Adoption Rate vs. Connection Rate at a Glance
| Connection rate | Adoption rate |
What it measures | How many trading partners have an established connection | How much transaction activity moves through the intended automated process |
Basic formula | Connected trading partners ÷ total trading partners × 100 | Automated transactions ÷ total transactions × 100 |
What a strong rate suggests | The technical foundation is largely in place | Trading partners and internal teams are consistently using that foundation |
What a low rate can signal | Onboarding or connectivity work remains | Manual processes, incomplete integrations, or inconsistent usage |
Question it answers | Can we transact electronically? | Are we transacting electronically? |
A supplier may have nearly every trading partner connected while still processing a meaningful share of transactions manually. In that case, connection rate may be high even though adoption has further to go.
What Is Supplier Connection Rate?
Supplier connection rate measures the percentage of trading partners with an established electronic connection.
The basic calculation is:
Connection rate = Connected trading partners ÷ Total trading partners × 100
A supplier working with 100 trading partners, for example, may have electronic connections established with only 90 of them.
For example:
90 ÷ 100 × 100 = 90% connection rate
The precise definition of a connection can vary by program. In general, it means the technical requirements for electronic exchange have been established. Credentials may be provisioned, an EDI or API path created, required documents mapped, and testing completed.
The metric provides a useful view of network coverage. A 90% connection rate indicates that most trading partners have the infrastructure needed to exchange information electronically. It does not indicate how much transaction volume is actually moving through that infrastructure.
Related Reading: From Connected to Performing: What Modern EDI Needs to Deliver
What Is Supplier Adoption Rate?
Supplier adoption rate measures the share of transaction activity that is moving through the intended automated process.
The calculation is:
Supplier adoption rate = Automated transactions ÷ Total transactions × 100
Consider a supplier that processes 10,000 transactions during a given period. If 7,500 are handled through the automated workflow, then:
7,500 ÷ 10,000 × 100 = 75% adoption rate
The remaining 25% may include transactions handled through retailer portals, email, spreadsheets, manual entry, or another process outside the primary integration.
This makes adoption rate a measure of operational use rather than technical availability. It can help show whether an established connection has made its way into the day-to-day flow of business.
Why Connection and Adoption Rates Can Be Different
Even after a connection is live, some transactions may still fall outside the automated process.
A supplier may receive purchase orders (POs) electronically but prepare advance shipping notices (ASNs) manually. Another trading partner may exchange most documents through EDI while maintaining a portal-based process for certain transactions. Standard orders may flow through an enterprise resource planning (ERP) integration without intervention, while exceptions require employees to step in.
These are common differences between technical enablement and operational adoption, and they become visible when the two rates are viewed together.
Consider a supplier with:
95% connection rate
72% adoption rate
The connection rate indicates that the technical foundation is largely in place. The lower adoption rate shows that a portion of transaction activity is still being handled elsewhere.
The 23 percentage points between them offer a starting point for understanding why.
What the Adoption Gap Can Reveal
A simple comparison can help quantify the difference:
Adoption gap = Connection rate − Adoption rate
A wider gap may be associated with:
Trading partners that are live but continue to use manual workflows
EDI documents that have not been fully implemented
ERP integrations that cover only part of the order cycle
Transactions handled through email, spreadsheets, or retailer portals
Compliance exceptions requiring correction or resubmission
The size of the gap is definitely useful information, but the activity behind it matters more. Looking at trading partners, document types, and transaction volume can help determine where manual processes remain concentrated.
Review Trading Partners
A small number of trading partners can account for a large share of transaction activity. Comparing adoption by retailer, distributor, marketplace, or other partner can show whether the overall gap is spread across the network or concentrated among a few high-volume relationships.
This distinction can also help teams prioritize. Improving adoption with a high-volume retailer may have a greater operational effect than addressing several smaller relationships at once.
Review Document Types
A live connection does not always mean every required document has been automated. POs may already flow electronically while acknowledgments, ASNs, invoices, or other documents require additional handling. Measuring adoption by document type can narrow a broad network-level gap to a specific process that needs attention.
Consider Transaction Volume
Trading partner count alone can also be misleading. Ten partners using manual processes might account for 3% of transactions in one network and 35% in another. The number of partners is the same, but the amount of work occurring outside the automated process is very different.
Measuring adoption against transaction volume provides the additional context needed to understand that difference.
Related Reading: What Is ERP Integration Debt? A Guide for Post-M&A Supply Chain Teams
How to Check Supplier Adoption Rate
Much of the information needed to estimate connection and adoption rates may already be available through EDI systems, ERP records, retailer portals, or transaction logs.
Start with a defined period, such as the previous 30 or 90 days, and gather:
Total active trading partners
Trading partners with an established electronic connection
Total transactions processed
Transactions completed through the intended automated workflow
Manual exceptions by trading partner and/or document type
From there, calculate connection rate and adoption rate separately.
Rates that remain relatively close suggest that established connections are being used consistently. A wider gap warrants a closer look at where transaction volume is leaving the automated workflow and whether those exceptions are concentrated in particular partners or processes.
What Is a Good Supplier Adoption Rate?
There isn’t one universal adoption rate that applies equally to every supplier. Trading partner mix, transaction volume, integration maturity, and program scope all influence what strong adoption looks like.
SPS Commerce network data has historically placed early-stage adoption programs in roughly the 60% to 80% range, while mature programs work toward 100% adoption.
Industry benchmarks provide context, but a supplier's own trend can be equally informative. A narrowing gap, fewer manual transactions, and greater adoption across high-volume partners and document types all indicate that more of the network is operating through the intended process.
Related Reading: The Definitive Guide to Retail Supply Chain Metrics
Frequently Asked Questions
What is supplier adoption rate?
Supplier adoption rate measures the percentage of transactions between a supplier and its trading partners that move through the intended automated process. It is calculated by dividing automated transactions by total transactions and multiplying by 100.
What is supplier connection rate?
Supplier connection rate measures the percentage of trading partners with an established electronic connection. It provides a measure of how much of the trading partner network has been technically enabled for electronic exchange.
What is the difference between adoption rate and connection rate?
Connection rate measures the share of trading partners that are technically connected. Adoption rate measures the share of actual transaction activity using those connections. As a result, a supplier can have a high connection rate while maintaining a lower adoption rate.
Why would supplier adoption rate be lower than connection rate?
Some transactions or document types may continue to rely on portals, email, spreadsheets, manual entry, or other workflows after a connection has been established. Partial integrations and transactions requiring manual intervention can also contribute to the difference.
How can suppliers improve their adoption rate?
Begin by identifying where manual transaction volume is concentrated. Comparing adoption by trading partner, document type, and transaction volume can help teams prioritize existing connections that have not yet been fully operationalized.
Connection Is a Milestone. Adoption Shows What Happens Next.
Connecting trading partners creates the infrastructure for electronic commerce. Adoption determines how fully that infrastructure is being used.
Tracking both measures gives suppliers a clearer view of their trading partner network and can expose areas that connection rate alone leaves hidden. The difference may be a particular retailer, an unfinished document workflow, or a small number of manual exceptions generating a disproportionate amount of work. Understanding where those gaps exist is the first step toward closing them.
Want to take a closer look at trading partner performance? Explore The Definitive Guide to Retail Supply Chain Metrics for the metrics that help suppliers measure performance across their network, or visit The Supply Chain Source for more practical guidance on EDI, compliance, operations, and retail supply chains.