Amending an Import General Manifest: What Happens When Your Cargo Does Not Match the IGM

Every sea or air shipment bound for Bangladesh is supposed to arrive exactly as its Import General Manifest describes it — same number of packages, same weight, same marks. In practice, cargo and paperwork do not always agree. A carton gets left behind at the origin port, a container is rolled to a later vessel, or a clerical slip records 48 cartons when the shipper actually loaded 46. When that happens, the IGM has to be amended before your Bill of Entry can move forward, and the amendment process is one of the more procedural, least understood corners of Bangladesh customs clearance.

What an IGM Actually Commits the Carrier To

The Import General Manifest is filed by the shipping line or airline’s local agent before or on arrival, listing every consignment on board destined for Bangladesh, against each Bill of Lading or Air Waybill number. If you want the background on the document itself, we cover it in what an IGM is and why it matters. Once filed, the IGM becomes the official record customs checks your Bill of Entry against. Your declared quantity, weight, and package count are expected to match what the carrier told customs was actually on board — not what your commercial invoice says, not what your packing list says, but what physically arrived.

The Short-Shipment Scenario: When Less Cargo Arrives Than Declared

A short shipment happens when part of an order does not make it onto the vessel or aircraft that the IGM was filed for — commonly because of a rolled booking during peak season, a late factory delivery that missed the cut-off, or a packing error at the origin warehouse. If your Bill of Entry declares the full order quantity but the IGM (and the actual cargo) show fewer packages, customs will not process clearance on the mismatch. The carrier’s agent has to file a short-landing certificate or an IGM amendment confirming the reduced quantity, and your Bill of Entry has to be revised to match before assessment can continue. Until that paperwork lines up, the shipment is effectively stuck in limbo — not held for inspection, just administratively unable to move.

The Over-Landing Scenario: When Extra Cargo Turns Up

Less common but more sensitive is over-landing, where more packages arrive than the IGM declared — sometimes a genuine consolidation error at the origin CFS, sometimes cargo that was meant for a different consignee or a different port entirely. Customs treats unexplained excess cargo far more cautiously than a shortage, since it can resemble an attempt to bring in undeclared goods. The carrier has to file an amendment explaining the discrepancy, and depending on the value and nature of the excess, customs may hold the entire consignment for verification even though only part of it is actually in question.

Who Is Actually Allowed to Request the Amendment

This is the detail that catches importers off guard: you, as the importer or your C&F agent, cannot file an IGM amendment yourselves. The IGM belongs to the carrier — only the shipping line or airline’s local agent can submit a correction to what they originally declared, since it is their statement of what they carried. Your role is to notify your forwarder or the carrier’s agent as soon as a discrepancy is discovered, supply supporting documents such as the packing list, the loading photographs, or correspondence with the shipper confirming what actually happened, and then wait for the agent to file the correction in ASYCUDA World on your shipment’s behalf.

How Long an Amendment Typically Adds to Clearance

There is no fixed turnaround customs publishes for IGM amendments, and it depends heavily on how quickly the carrier’s local office responds and how straightforward the discrepancy is. A simple short-landing on a routine consumer-goods shipment can be corrected within a working day or two once the carrier confirms it. A more complicated over-landing case, or one that overlaps with a valuation question, can take considerably longer, and every day the correction is pending is a day your free time and any applicable demurrage under the rules we describe in demurrage and detention charges keeps running. Factor this into your timeline the moment you learn of a discrepancy rather than after free time has already lapsed.

What This Means for Split or Partial Shipments

IGM discrepancies come up often on split shipments — where one purchase order is deliberately shipped across two or more sailings or flights. Each partial shipment needs its own, internally consistent IGM entry and Bill of Entry; problems arise when the shipper’s documentation still references the original combined order quantity instead of the actual quantity on that specific vessel. If you are managing an order that is being split intentionally, our piece on customs clearance for split shipments covers the documentation discipline needed to avoid triggering exactly this kind of manifest mismatch.

Practical Steps to Avoid an Amendment Turning Into a Real Delay

• Ask your supplier for the actual loaded quantity confirmation at the time of shipment, not just the order confirmation, so any shortfall is known before the vessel sails.
• Notify your forwarder the moment you suspect a discrepancy, rather than waiting for customs to catch it during examination — a proactive amendment moves faster than a reactive one.
• Keep loading photographs and the shipper’s packing list on file for every consignment, since these are the documents carriers ask for before they will file a correction.
• If a shipment is being split across sailings, confirm with your forwarder that each leg’s documentation is prepared independently rather than copied from the combined order.

Manifest discrepancies are one of the more avoidable causes of clearance delay, and having a C&F partner who catches them early — before the Bill of Entry is even filed — saves the back-and-forth with the carrier’s agent later. DE International manages this coordination as part of our customs clearance service. For questions on a specific shipment, contact us directly, or explore our China sourcing and buying agent service if you are still at the ordering stage.

A Short-Landing Case, Step by Step

Picture a consumer-electronics order booked for 48 cartons. At origin, the CFS warehouse loads only 46 onto the container before the cut-off, holding the remaining two back for the next available booking — a common outcome when a factory delivers its last cartons to the forwarder later than planned. The carrier files the IGM for 46 cartons, matching what was actually loaded. If your Bill of Entry was already prepared against the original purchase order of 48, customs will flag the mismatch the moment it cross-checks your declaration against the manifest, and clearance stops until one of two things happens: either your forwarder revises the Bill of Entry down to 46 cartons and files for the remaining two under a separate, later Bill of Entry once they arrive, or the carrier issues a short-landing certificate that formally documents the gap so customs can proceed on the reduced quantity without waiting for an explanation. Either route requires paperwork moving between your shipper, the carrier’s local agent, and your C&F agent, which is why catching this before the Bill of Entry is filed — rather than after customs rejects it — saves a full cycle of correction.

When a Manifest Discrepancy Overlaps With a Valuation Query

The slowest cases are the ones where an IGM discrepancy surfaces at the same time as an unrelated valuation or classification question on the same shipment. Customs will generally not process either issue in isolation once both are open on the same Bill of Entry — the file effectively waits for both to close. If you already suspect your declared value sits below the reference price customs holds for that HS code, it is worth getting the quantity discrepancy resolved as quickly as possible so it is not still open when the valuation question also needs attention, since two simultaneous open queries on one consignment tend to take longer together than either would separately.