Postal tracking has its own vocabulary, and "office of exchange" is the piece of it that confuses most people. This page explains what an office of exchange is, what the four statuses built on the term mean, what happens between them, and when a parcel sitting on one of them is actually stuck.
Short answer: An office of exchange is the postal facility where international mail is handed from one country's postal operator to another's. The outward office of exchange is in the sending country and prepares mail for export. The inward office of exchange is in the receiving country and takes mail in for customs and onward delivery. "Departure from outward office of exchange" means your parcel has left the origin country. "Arrival at inward office of exchange" means it has reached the destination country and is about to be presented to customs.
What an office of exchange is
National posts do not deliver in each other's countries. A parcel posted in Japan, China, Germany or the United States travels inside its home postal network until it reaches a designated international facility, where it is bagged, documented and dispatched to the corresponding facility in the destination country. Those facilities are the offices of exchange. Every international postal item passes through two under normal routing: one outward, one inward. Some routes add a third, a transit office of exchange, when the mail moves through an intermediate country on the way.
The word "office" is historical. Today an office of exchange is usually a large mail centre near an airport or a port, not a counter you can visit.
The four statuses, in order
| Status | Where the parcel is | What happens next |
|---|---|---|
| Arrival at outward office of exchange | At the international export facility of the origin country's post, waiting for export processing and a flight or a truck | Departure from outward office of exchange |
| Departure from outward office of exchange | The parcel has left the origin country. It is on, or waiting for, its international transport | A long quiet stretch, then arrival at the inward office of exchange in your country |
| Arrival at inward office of exchange | At the international import facility of your country's post. The parcel is about to be presented to customs, or already has been | Customs processing, then departure from inward office of exchange or a customs-specific status |
| Departure from inward office of exchange | Customs is finished and the parcel has left the international facility for the domestic network | Domestic sorting, then the delivery office, then out for delivery |
Japan Post uses exactly this wording on its international tracking, with "transported in bond" and "arrived in bond" for items moved between exchange offices for customs, and China Post uses variants such as "departure from office of exchange" and "departure from international sorting center" for the same outward event. The full carrier-by-carrier lists are in Japan Post tracking statuses and China Post tracking statuses.
"Arrival at inward office of exchange": what to expect
This is the status people search most, because the parcel often sits on it. Three things are happening behind it:
- Deconsolidation. The mail bag or container your parcel travelled in is opened and each item is scanned individually.
- Presentation to customs. Postal items are declared to the customs authority of the destination country. Some posts show this as a separate status, such as "item presented to import customs" or "held at customs"; others leave the parcel on the arrival status until customs is done.
- Duty and tax assessment. If anything is owed, you receive a payment request from your post or its customs broker before the parcel moves on.
A parcel on "arrival at inward office of exchange" for several days is normal. How long customs itself takes, and what the honest answer is when no maximum is published, is in how long does customs clearance take. If your tracking shows a customs-specific status instead, awaiting customs clearance and customs clearance completed explain those.
"Departure from outward office of exchange": the quiet stretch
This scan marks the last event in the origin country. What follows is the part of the journey with the fewest updates: consolidation into a dispatch, a wait for space on a flight or vessel, the transport itself, and handling at the destination airport before the inward office receives the dispatch. It is common for tracking to show nothing for a week or more between "departure from outward office of exchange" and "arrival at inward office of exchange", and for surface or economy services the gap can be several weeks.
No new scan in this stretch is not a sign of loss. The parcel is inside a sealed dispatch that will only be scanned again when the receiving post opens it.
"Transit office of exchange" and "arrival at transit office from exchange"
When mail cannot fly directly, it moves through an intermediate country's post. The transit office of exchange receives the dispatch, forwards it, and records a status such as "arrival at transit office of exchange" or "departure from transit office of exchange". It adds a leg and some days to the journey, and it explains why a parcel from Asia to Europe may show a scan in a third country. Nothing needs to be done at this stage.
How long each stage takes
There is no published rule, and timings depend on the service (express, air, surface), the route and the season. As a working guide:
- Arrival to departure at the outward office: same day to a few days, longer around holidays and peak season.
- Outward departure to inward arrival: days for air services, weeks for surface.
- Inward arrival to inward departure: hours if nothing is owed and customs is quick, several days when a declaration is checked or a payment is requested.
- Inward departure to delivery: the domestic post's normal transit time.
If a stage has lasted well beyond these ranges and the delivery estimate has passed, contact the seller. For postal items the seller, as the sender, is the party who can open an enquiry with the origin post.
For merchants
Cross-border parcels sent by post spend most of their journey inside statuses like these, and every one of them generates the same customer question: is it stuck? A tracking page that translates "arrival at inward office of exchange" into "arrived in your country, going through customs", and that tells the customer when a payment request is likely, removes most of that support load. Pango normalises postal and courier statuses onto one plain set, in the customer's language, and messages at the moments that produce tickets, such as a customs hold. If you ship internationally and want to see how your own carriers' scans map onto one status set, start with carrier management software.
The bottom line
An office of exchange is where international mail changes hands between two national posts. Outward is the exit from the sending country, inward is the entry into yours, and the arrival at the inward office is where customs happens. The gaps around these statuses are long by design, so read them as progress, allow the customs stage its days, and involve the seller only when the delivery estimate has passed.
