A truck booked for 2 p.m. arrives at 9 a.m. The appointment was confirmed. The carrier had the time. Your team is working through the morning’s deliveries, but someone now needs to tell this driver where to go and what will happen next.
If this keeps happening, another appointment reminder may achieve little. You need to establish why those trucks are arriving so early, what can change before they reach you, and what your staff should do when they arrive anyway.
Find the deliveries behind the problem
Start with the appointments that are causing difficulty. Compare their booked times with actual arrival times, then look for repetition: the same carrier, supplier, route, delivery type, or day of the week.
Record what happened at the facility as well. Did the truck wait without affecting other work? Did someone have to find a waiting place? Was it unloaded early, and did that change another task? These details help you explain the problem accurately when you speak to the company arranging transport.
The useful result is a specific account: which deliveries arrive early, how early they arrive, and what your team has to do about them.
Ask what is producing the early arrival
Take those examples to the person planning the transport. Ask them to walk through one delivery: when the truck was dispatched, what happened before your stop, when an earlier arrival became likely, and whether anyone requested an appointment change.
There may be more than one explanation. A 2022 study involving three distribution centres and five trucking companies identifies possibilities including extra time allowed for delays, expected delays that do not occur, and a previous transport finishing early. Those are reasons to investigate, rather than explanations to assume for your carriers. Carlan and colleagues’ slot-booking study.
The explanation determines the useful next conversation. If a recurring dispatch plan sends trucks toward your facility hours before the appointment, discuss whether departure or the delivery sequence can change. If an earlier stop finishes unexpectedly, agree how the carrier should request a different time. If the booking contact knows the appointment but the driver does not, trace where that information stops.
Ask who can make the relevant change. The driver at your gate may have little control over a departure time or route chosen elsewhere.
Give staff a workable response to an early truck
Your arrival policy has to work when the truck is physically there.
Some facilities can admit a truck and hold it in a designated area without assigning a dock. Others have limited yard space. Some can occasionally unload early; others need the crew or equipment for work already scheduled.
Decide what your site can offer, and under what conditions. If early unloading is possible, establish who checks the available people, equipment, and competing work before authorizing it. If waiting is possible, identify the location and how the driver will receive the next instruction. If your site cannot accommodate early trucks, carriers need that information before dispatch—not when the driver reaches the entrance.
A September 2026 report on Rotterdam’s ECT terminals illustrates why admission and service may require different rules. Under the announced policy, an early truck could pass the entrance barrier, partly to avoid unsafe queues on the public road, but still have to wait for its allocated slot. That terminal arrangement is not a template for every warehouse. An admission decision does not have to be a decision to start unloading. Trans.info’s reporting on the policy.
Write down the response your staff can actually carry out. Avoid leaving each shift to negotiate the same situation from scratch.
Make changing the appointment easier to understand
A carrier that expects to arrive early needs to know how to request a change and when that change is confirmed.
Include that process in the booking instructions. State the arrival window, any limits on waiting, and how to contact the facility if the expected arrival changes. Make clear that requesting an earlier time does not itself confirm one.
For recurring deliveries, discuss a revised booking time only if it works for both the transport plan and the receiving operation. Moving every appointment to match when trucks currently turn up could simply transfer the pressure into your busiest period.
DataDocks can support this arrangement through booking messages, appointment-change settings, and configurable early-arrival classifications. Set those rules around the response you have agreed with your team. For example, the threshold used to flag an early arrival should reflect the arrival expectations you communicate to carriers.
The person booking also needs a way to pass the relevant instructions to the driver. A message visible in a booking portal is useful only if the person making the visit receives the information they need.
Keep the record behind an early-arrival flag
Once dock scheduling is in daily use, the records should help you explain a carrier’s arrival pattern. For each visit, keep the original appointment, any agreed change and the actual arrival time together.
Keep appointment changes visible in the review. A truck originally booked for the afternoon may have been moved to the morning after it arrived. Comparing arrival only with that revised time would conceal the original mismatch. Equally, an earlier arrival that your team approved in advance should not be treated as an unannounced exception.
Was this truck five hours early?
The truck arrives at 09:00 in all three cases. What changes is whether its 14:00 appointment was moved before or after arrival.
- Original appointment 14:00
- Truck arrives 09:00
Expected arrival: 14:00
Five hours early. The facility was expecting this delivery at 14:00. The truck arrived at 09:00 without an earlier appointment.
- Original appointment 14:00
- Appointment moved to 09:00
- Truck arrives 09:00
Expected arrival: 09:00
On time for the revised appointment. The facility confirmed 09:00 before the truck arrived. Comparing the arrival with the original 14:00 booking would wrongly count this visit as early.
- Original appointment 14:00
- Truck arrives 09:00
- Appointment moved to 09:00
Expected arrival: 14:00
Still five hours early. The appointment was for 14:00 when the truck arrived. Changing it to 09:00 afterward hides that difference unless the original booking remains visible.
In DataDocks, use appointment notes and arrival classifications to retain the context behind an early-arrival flag. That gives you a record to discuss with the carrier, including what your team had accepted before the truck arrived.
Check whether the same deliveries arrive differently
After agreeing a change, return to the deliveries that prompted the discussion. Compare their arrival times with their appointments and review any early arrivals individually.
Look at what changed operationally, too. Are staff still arranging waiting space at short notice? Are early-service decisions being made by the agreed person? Are carriers requesting changes before arriving?
If the arrival pattern persists, take the examples back to the transport planner. Establish whether the agreed action happened and whether it addressed the cause. A departure time may not have changed. An appointment-change request may have reached someone too late to respond. The route may have a constraint that the first conversation did not uncover.
Keep the working arrangement short enough for staff and carriers to use. It should answer five questions:
- How early may a truck arrive?
- How does the carrier request a different appointment?
- What waiting arrangements are available?
- When can early service be authorized?
- Who handles an exception?
Review those answers against actual visits. The measure of progress is fewer unexpected early arrivals—and a response your team can carry out when one still occurs.
