Japan Post Tracking and API Integration with ClickPost

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Benefits of Connecting with Japan Post with ClickPost

Connecting Japan Post with ClickPost enables brands to achieve:

39% higher-value exchanges through automated returns and exchange workflows.
40% revenue retained via store credits during returns and exchanges.
76% improvement in operational efficiency through logistics workflow automation.

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Check the integration library

	Partner ID	Order Creation	Cancellation	Tracking via Polling	Tracking via Webhook	Proof of Delivery (POD)	Non Delivery Report (NDR)	Create Pickup Request	AWB Generation Flow	Label Generation	Country
Japan Post		✓	✓	✓	✓	✓	✓	✓		Clickpost Generated	India

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How to track Japan Post Packages?

Track Japan Post Packages with the Clickpost Tracking Page

Open the ClickPost tracking page.
Enter your Japan Post AWB number or tracking ID in the tracking field.
Submit the tracking request to fetch the latest shipment details.
View real-time shipment milestones, transit updates, and delivery status on a single tracking dashboard.

Track Japan Post Packages with the Official Page

Open the Japan Post tracking page on ParcelsApp.
Enter your Japan Post tracking number in the tracking field.
Click the Track Package button to retrieve shipment details.
View real-time shipment updates including transit progress, delivery milestones, and current shipment status.

List of Japan Post APIs

API	Description
Manifestation and Label Generation API	Generate shipping labels and create shipment manifests.
Track Shipment API	Retrieve shipment events and tracking milestones.
Cancellation API	Cancel shipments and automate cancellation workflows.
EDD API	Calculate estimated delivery timelines.
NDR Action Update	Manage failed delivery and exception workflows.
Return Webhooks	Automate returns and reverse logistics processes.

API & Description

Manifestation and Label Generation API

Generate shipping labels and create shipment manifests.

Track Shipment API

Retrieve shipment events and tracking milestones.

Cancellation API

Cancel shipments and automate cancellation workflows.

EDD API

Calculate estimated delivery timelines.

NDR Action Update

Manage failed delivery and exception workflows.

Return Webhooks

Automate returns and reverse logistics processes.

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Frequently asked questions

Everything you need to know about ClickPost’s Carriers Integration

How does Japan Post's EMS service differ from its standard international parcel service?

EMS is Japan Post's top-tier express service, delivering worldwide in 2 to 5 business days with detailed tracking, automatic insurance, and priority customs processing included. Standard international options like Airmail, SAL, and Surface Mail trade speed for cost, with delivery times ranging from 3 to 6 days for Airmail up to 1 to 3 months for Surface. Tracking and insurance on standard parcels are paid add-ons rather than built in.

What are the size and weight limits for Japan Post international shipments?

Most international parcels cap out at 30 kg, though some destinations limit this to 20 kg. Maximum length is 1.5 meters, and the combined length plus girth cannot exceed 3 meters. Small Packets, a cheaper sub-category, are strictly limited to 2 kg with total dimensions under 90 cm.

How does Japan Post handle customs clearance for cross-border e-commerce shipments?

Japan Post operates through the Universal Postal Union network, which means merchants must electronically submit customs data including item descriptions, values, and HS codes before shipping. Once the parcel arrives at the destination, local postal customs handle clearance. Japan Post defaults to a DDU model, so if duties are owed, the destination postal service contacts the buyer to pay before handing over the package.

Does Japan Post support cash-on-delivery for domestic shipments in Japan?

Yes. Japan Post offers a domestic COD service called Daibiki, widely used by Japanese consumers who prefer not to pay online. It's available for Yu-Pack and Yu-Mail services. Japan Post collects cash at the doorstep and transfers the funds to the merchant's bank account electronically, minus a small handling fee.

How does ClickPost's branded tracking portal keep Japanese e-commerce customers informed?

ClickPost replaces the standard Japan Post tracking page with a fully branded, mobile-responsive page in your store's look and feel. Customers receive proactive updates via email, SMS, or LINE at key milestones like Cleared Customs and Out for Delivery. For international buyers, ClickPost also translates Japan Post's shipping statuses into localized languages so nothing gets lost in translation.

Can ClickPost reduce RTOs for Japan Post shipments with automated NDR management?

Yes. The moment Japan Post logs a failed delivery, ClickPost flags it and sends an automated message to the customer asking them to schedule a re-delivery, verify their address, or provide access details. That updated information gets fed back into the workflow so the next delivery attempt has everything it needs to succeed, keeping expensive return trips back to Japan to a minimum.

How does ClickPost's EDD feature work with Japan Post's international delivery network?

ClickPost's EDD engine uses machine learning and historical Japan Post lane data to show shoppers an accurate delivery estimate at checkout. During transit, if a shipment hits a bottleneck like customs delays at a specific airport, ClickPost recalculates the expected date dynamically and updates it on the tracking page so customers always have a realistic expectation without having to contact support

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