01 / 10
PROTOCOL · BOTH DIRECTIONS
PunchRelay connects your Shopify store to your buyers' procurement systems. They punch out to your catalog at contract prices. Their purchase orders arrive in your PunchRelay inbox, and you create the Shopify order with one click.
02 / 10
THE GAP
Your biggest customers stopped clicking checkout buttons years ago. They order through procurement systems: SAP Ariba, Coupa, Jaggaer, or an SAP ERP speaking OCI. If your Shopify store cannot answer a PunchOutSetupRequest, you are an email attachment and a retyped purchase order.
↳ SOUNDS FAMILIAR?
03 / 10
THE WORK
Enterprise caliber. Without the enterprise drag.
01 / 04
Not just cart transfer. PunchRelay handles the return leg too: cXML OrderRequests are checked against the cart and wait in your Purchase orders inbox. You review each one and create the Shopify order with one click.
Explore protocol →02 / 04
Prices come straight from Shopify B2B catalogs. Each buyer sees negotiated rates in their punchout session and on the returned PO.
See catalog setup →03 / 04
Minimums, maximums, and case increments are checked in the cart before transfer to the buyer's procurement system.
View cart controls →04 / 04
Every request and response logged with credentials redacted. When the buyer's IT asks what happened, send raw XML, not screenshots.
Inspect wire logs →↳ Commitment to protocol fidelity
04 / 10
WHAT CHANGES
Built for Shopify B2B merchants, from single-location distributors to multi-currency manufacturers on Shopify Plus. PunchRelay handles the punchout connection your enterprise buyers ask for.
↳ Every purchase order is reviewed by your team before it becomes a Shopify order
05 / 10
THE BUYER'S SYSTEM
Select your buyer's procurement network for connection guides, protocol nuances, and enablement realities.
01 / 03
cXML punchout with the full document round trip, from PunchOutSetupRequest to OrderRequest. Includes the network-fee reality check every supplier should read before enablement.
Ariba punchout for Shopify →02 / 03
The fastest enablement in procurement: buyers configure punchout themselves and Coupa charges suppliers nothing. The right first connection for most merchants.
Coupa punchout for Shopify →03 / 03
HOOK_URL round trips for SAP SRM, S/4HANA and other OCI buyers, with the custom NEW_ITEM fields their ERP demands. Built for DACH procurement.
OCI punchout for Shopify →06 / 10
THE ARTIFACT
<cXML payloadID="20260806.1@buyer.example.com">
<Request deploymentMode="production">
<PunchOutSetupRequest operation="create">
<BuyerCookie>7f2c-buyer-session</BuyerCookie>
<Extrinsic name="UserEmail">jane@buyer.example.com</Extrinsic>
<BrowserFormPost>
<URL>https://buyer.example.com/punchout/return</URL>
</BrowserFormPost>
</PunchOutSetupRequest>
</Request>
</cXML><PunchOutOrderMessage>
<BuyerCookie>7f2c-buyer-session</BuyerCookie>
<PunchOutOrderMessageHeader operationAllowed="edit">
<Total><Money currency="USD">1250.00</Money></Total>
</PunchOutOrderMessageHeader>
<ItemIn quantity="50">
<ItemID><SupplierPartID>SKU-4711</SupplierPartID></ItemID>
<ItemDetail>
<UnitPrice><Money currency="USD">25.00</Money></UnitPrice>
<Description xml:lang="en">Nitrile gloves, box of 100</Description>
</ItemDetail>
</ItemIn>
</PunchOutOrderMessage><Request>
<OrderRequest>
<OrderRequestHeader orderID="PO-10023" orderDate="2026-08-06" type="new">
<Total><Money currency="USD">1250.00</Money></Total>
<ShipTo><Address addressID="BER-01"/></ShipTo>
</OrderRequestHeader>
<ItemOut quantity="50" lineNumber="1">
<ItemID><SupplierPartID>SKU-4711</SupplierPartID></ItemID>
</ItemOut>
</OrderRequest>
</Request>Round trip
A punchout request opens the catalog. The cart returns to the buyer's system as a document. The purchase order that follows is checked against that cart and waits for your review. The XML is the product.
07 / 10
STANDING OUT
When large enterprise accounts require punchout, manual workarounds break quickly. PunchRelay automates the protocol work, and your team keeps the final say on every order.
PR.M-01
0
Line items retyped from PO PDFs
Approved cXML purchase orders are checked against the transferred cart and wait in your Purchase orders inbox. You review each one and create the Shopify order with one click.
PR.M-02
100%
Contract pricing from Shopify B2B catalogs
Prices come straight from your Shopify B2B catalogs. Each buyer sees their negotiated rate in the punchout cart and on the returned PO.
PR.M-03
4
cXML documents, full round trip
Full XML session logs in both directions. When the buyer's IT team asks what happened, you send them the actual cXML, not a screenshot.
08 / 10
THE CHECKLIST
01 / 03
Prices come straight from Shopify B2B catalogs. Each buyer sees the prices you negotiated, per company location, in the punchout session and again on the returned purchase order.
02 / 03
Minimums, maximums and case increments from your B2B settings are enforced in the cart, before it reaches the procurement system. Fewer rejected requisitions, fewer support emails.
03 / 03
Every request and response is logged with credentials redacted, from PunchOutSetupRequest to OrderRequest. When your buyer's IT team asks what happened, you send them the actual XML, not a screenshot.
Works with
Working with another procurement system? Read our guides to PunchOut for Jaggaer, PunchOut for Oracle Procurement, and PunchOut for Workday. Preparing your first connection? Follow the Shopify PunchOut setup guide or compare cXML and OCI.
09 / 10
READY
We are onboarding a small group of Shopify B2B merchants and building their first buyer connections with them. Tell us where to reach you.
THE ON-RAMP
A complete punchout readiness roadmap for your exact catalog, ERP, and buyer procurement systems before you commit to live deployment.
↳ NO SLIDE DECK
10 / 10
PUNCHRELAY CORE
B2B suppliers deserve enterprise procurement capability without the enterprise drag. PunchRelay connects Shopify stores directly to enterprise purchasing networks so merchants never lose an account to procurement bureaucracy.
↳ Built for Shopify B2B · est. 2026