What is COPARN? COPARN is the UN/EDIFACT container announcement message. Shipping lines and their agents use it to pre-advise a depot that a container will be released or delivered against a booking. At an empty depot, the COPARN tells the gate which units to expect; the depot then reports the actual gate-in or gate-out back to the line with CODECO.
Monday, 07:12. The line’s booking email says MSCU1234567, 40HC, empty return by noon. The truck hits the booth with a different ISO. The clerk waves it in “to keep the lane moving,” then spends the afternoon reconciling Gate In sheets against the line’s pre-advice thread. CODECO goes out late—or names the booking that never arrived. Peak week multiplies the archaeology.
That is the coparn edi integration problem at a US empty depot. Not marine-terminal COARRI theatre. Not a generic “we send EDI” badge. An inbound pre-advice match problem: the booking the line (or trucker) sent must meet the physical unit at Gate In—or land in an exception queue—so outbound gate events and inventory stay honest.
This piece is for ops-desk buyers who demo for fewer line escalations on an empty-container depot/yard OS (~200–5,000 TEU)—gate, EIR, inspections, M&R, yard, billing, portal, Jarvis—not a freight TMS and not a marine TOS. Outbound gate-event truth: CODECO EDI for empty container depots. Booth queues: gate management software for depots. Capture accuracy: OCR container number capture at the depot gate. Focus here stays on COPARN-style pre-advice in → match or exception at the booth—before CODECO has anything clean to say.
What COPARN is for at an empty depot (and what it is not)
On the empty-depot desk, COPARN is shorthand for booking / pre-advice the line systems already understand: which unit (or size/type/grade ask) is expected, for which move, under which party context—before the truck is on the scale.
What it is for: inbound empty return advice the booth can match; an expected unit or equipment ask tied to a booking reference; a digital “should arrive” row—not a PDF buried in email.
What it is not: a substitute for Gate In (physical arrival still owns the commit); CODECO (that is the outbound gate-event handshake—see the CODECO spoke); marine-terminal COARRI stacks; a second spreadsheet after the truck leaves.
You do not need every EDIFACT segment memorized. You need one rule: pre-advice proposes; Gate In confirms; exceptions are logged—not waved through into a parallel ledger.
Practical rule: if “the booking” only lives in a mailbox and “what arrived” only lives in a Gate In sheet, you do not have COPARN EDI integration—you have two religions.
Pre-advice that should match Gate In before the truck hits the booth
Pre-advice earns its keep when it is visible at the booth before the driver argues with the scale.
Healthy empty-depot pattern:
- Booking / COPARN-style advice lands in the depot OS (line feed, partner EDI, or portal booking)—same unit timeline the gate will use
- Appointment / VBS slot (when you run one) points at that expected unit or equipment ask—see vehicle booking system for container depots
- Booth (and OCR, when you use it) reads the plate and matches or flags against that pre-advice
- Match → Gate In commits on the shared timeline; EIR and inventory update from that commit
- No silent “close enough” overwrite when ISO, size/type, or party context disagree
OCR helps the booth see the plate; COPARN tells the booth what was supposed to show up. Partners, not rivals: OCR at the depot gate validates the unit; pre-advice defines the expectation.
Practical rule: if the clerk first learns the booking after Gate In, pre-advice never owned the lane—email did.
Exception queues when booking ≠ physical unit
Mismatch is normal. Silent overwrite is how lines lose trust.
Common exceptions: wrong ISO vs booking; right number but wrong size/type or grade; walk-up with no (or expired) pre-advice; ghost booking that never arrives; party/release context that does not match the booth.
Exception queues that survive peak week: flag, don’t invent; owner + timestamp on accept/reject/rebook; pause clean CODECO until the row resolves; keep exceptions in the same OS as Gate In—not a WhatsApp thread the night shift cannot find.
Practical rule: an exception that cannot be replayed for the line is not an exception process—it is a future escalation.
How COPARN + CODECO close the loop without a second spreadsheet
COPARN and CODECO are one commercial loop, two directions:
| Direction | Operator label | Empty-depot job |
|---|---|---|
| In | COPARN / pre-advice | What should arrive (booking truth) |
| Booth | Gate In + EIR | What physically arrived (commit) |
| Out | CODECO / gate EDI | What the line’s systems should believe happened |
The failure mode is the middle spreadsheet: clerk matches email to Gate In sheet, then someone else re-keys CODECO. By then booking, yard, and line inventory already disagree.
Closed loop on one depot OS: pre-advice and Gate In share container IDs and booking refs; match/exception outcomes are first-class events; CODECO (and portal status) consumes the committed Gate In—see CODECO EDI for empty container depots—with no second typing after the truck leaves; billing and dwell clocks start from that same commit.
Soft check: pull one return from last peak morning. If the line’s booking, your Gate In row, and the CODECO payload disagree—or a clerk reconciled them in email after the truck left—you do not have COPARN EDI integration yet. You have pre-advice archaeology. See one timeline at containerhub.ai.
Practical rule: if CODECO needs a second typing of a booking the booth already matched, the loop never closed.
Buyer checklist: EDI-ready events the line desk will trust
Before you buy another “EDI module” or shortlist container depot EDI software, walk this with ops and the line desk in the same room:
| Check | Pass looks like |
|---|---|
| Pre-advice in the same OS as gate | Booking visible at the booth before the truck; not only in Outlook |
| Match / exception at Gate In | Wrong box or walk-up becomes a queue row with owner—not a silent wave-through |
| One container ID end-to-end | Booking → Gate In → EIR → inventory → CODECO cite the same ISO and timestamp |
| No re-key for outbound EDI | CODECO consumes the committed gate event (CODECO spoke) |
| Audit for overrides | Who changed booking vs plate, when, and why—defendable to the line |
| Empty-depot frame | Pre-advice + gate events for ~200–5,000 TEU yards—not a marine COARRI stack |
| Appointments optional, not a second religion | VBS/slots point at the same pre-advice (VBS spoke) |
Reject as “coparn edi integration” for this buyer: EDI middleware with no gate commit; a marine TOS COARRI pitch; email-to-Excel “EDI ops”; a directory profile that claims EDI without a booth match.
Frequently asked questions
What is a COPARN message?
COPARN is the UN/EDIFACT container announcement message. A shipping line or its agent sends it to a depot or terminal to announce containers that will be delivered or released against a booking, so the receiving site knows which units to expect.
What is the difference between COPARN and CODECO?
COPARN is the advance announcement: it tells the depot which containers to expect before they move. CODECO, the UN/EDIFACT container gate-in/gate-out report, is the confirmation the depot sends after the move to report the actual gate-in or gate-out.
Where ContainerHub fits
If the desk still reconciles line booking emails against Gate In sheets—and CODECO waits on that archaeology—the fix is not a louder EDI vendor. It is coparn edi integration inside the empty-depot OS: pre-advice in, match or exception at the booth, CODECO out from the same commit.
ContainerHub is a depot / yard OS for empty-container operations (~200–5,000 TEU)—gate, digital EIR, inspections, M&R, yard, billing, client portal, and Jarvis on one model—not freight TMS, not WMS, not a marine TOS pitch. Soft next step only: review the product, book a demo, or compare pricing. No directory ask.
Walk one return booking in a demo. Ask whether pre-advice, Gate In match/exception, EIR, and CODECO share one container number—without a spreadsheet between the line’s booking and your outbound message.
Visit ContainerHub · Pricing · Demo
Related: CODECO EDI for empty container depots · OCR container number capture at the depot gate · Gate management software for depots · Vehicle booking system for container depots · Container yard inventory management · Container depot management software
