Common ACE & ACI e-Manifest Errors for Highway Carriers (and How to Avoid Them)

For highway carriers crossing the Canada–U.S. border, ACE (U.S.) and ACI (Canada) e-manifest filings are often the last step before a truck reaches the port of entry—but they shouldn’t be last-minute. Many border delays trace back to preventable data issues: paperwork mismatches, missing details, or transmissions that weren’t accepted before arrival.

Below are common ACE/ACI e-manifest errors seen in truck freight, along with practical ways carriers can reduce risk.

1) Filing too late (or arriving before acceptance)

One of the most common problems is timing: the truck is dispatched, the driver is close to the border, and the e-manifest is still being processed. If a correction is needed, there may be no time to fix it before arrival.

Avoid it: Build a dispatch workflow that collects shipment details early, transmits in advance, and confirms acceptance before the driver heads to the crossing.

2) Shipper/consignee name and address mismatches

Small differences in shipper/consignee details—abbreviations, missing suite numbers, outdated addresses, or swapped parties—can create inconsistencies between the e-manifest and the commercial documents used for clearance. They can create confusion for the customs broker and lead to rejected clearance requests.

Avoid it: Standardize customer master data where possible and verify the shipper/consignee fields against the invoice/packing list before transmitting.

3) Vague or incomplete commodity descriptions

Descriptions like “auto parts,” “freight of all kinds,” “equipment,” or “general merchandise” are inadequate for Customs risk assessment and can trigger holds.

Avoid it: Ask shippers for plain-language descriptions that identify what the goods are (and, when relevant, what they’re made of or used for). If you routinely haul the same commodities, keep a vetted description list for dispatch.

4) Piece count/weight/packaging doesn’t match the paperwork

A common highway issue is a mismatch between what’s on the manifest and what’s on the invoice/packing list/BOL: piece counts, weights, pallet counts, or packaging types. Even honest mistakes can look like a data integrity problem at the border.

Avoid it: Confirm totals before transmission and ensure the driver’s documents match what was filed on their manifest and the customs brokers entry. If the load changes after filing, ensure you update the transmission promptly.

5) Wrong crossing/port, routing, or conveyance details

Selecting the wrong port of entry, using an outdated route, or entering incorrect conveyance details can cause confusion at arrival—especially when dispatch changes the plan mid-trip.

Avoid it: Confirm the intended crossing at dispatch and communicate changes immediately to whoever manages the e-manifest so the filing can be updated before arrival.

6) Not coordinating changes (last-minute pickups, split loads, or added stops)

Highway operations change quickly. A second pickup gets added, a shipment is split, or a consignee changes. If the e-manifest isn’t updated to reflect the new reality, the driver arrives with documents that don’t match what Customs sees.

Avoid it: Treat e-manifest updates as part of change management. When dispatch changes the load, the e-manifest processor must be notified immediately and confirm the update was accepted.

A simple carrier checklist before the truck rolls

• Shipment details (including customs broker info!) collected and verified against paperwork

• Port of entry confirmed for this trip

• E-manifest transmitted and acceptance confirmed

• Driver documents match what was filed

  
  

How R&R Customs Brokers can help

R&R Customs Brokers E-manifest filing team supports highway carriers and cross-border shippers by helping reduce preventable border delays. We can help you tighten up data quality, align documents with transmissions, and build repeatable dispatch processes that keep trucks moving. Contact us to review your current workflow!