USPS

Live Rate Calculation

Get accurate USPS shipping rates based on package weight, dimensions, service level, and destination in real time. Shipduo’s USPS integration also displays live shipping rates at checkout when order data and shipping rules support it.

Dynamic Updates

Rates can adjust when package details, delivery address, or selected USPS service changes.

Multiple Service Options

Display USPS service levels such as Priority Mail, USPS Ground Advantage, First-Class Mail, and Media Mail where they fit the shipment.

Checkout Integration

The USPS ecommerce integration helps keep customer-facing shipping costs closer to the final parcel rate.

Cost Transparency

Accurate USPS pricing helps reduce overcharging, undercharging, and avoidable margin loss.

Profitability Insight

Real-time parcel rates give teams better information for budgeting, shipping rules, and service selection.

Instant Label Generation

Create USPS shipping labels from connected order data without copying customer and package details into another system.

Auto-Filled Order Details

Shipduo can pull customer information, addresses, package data, and shipment details into the label workflow to reduce manual errors.

Connected Label Data

For teams with custom fulfillment rules, shipping API connectivity helps keep USPS label creation connected to order details, package data, and carrier activity.

Batch Label Printing

Print multiple USPS labels during high-volume fulfillment periods, including peak season shipping.

Barcode-Ready Labels

Labels are formatted for USPS scanner workflows, helping packages move cleanly through the mailstream.

Digital & Paper Options

Download labels for digital use or print them for warehouse, packing, and dispatch teams.

Connected Label Workflow

Shipduo keeps shipping labels and tracking tied to the related order, so the label and delivery record stay together.

Domestic Coverage

Ship across the U.S., including residential addresses, P.O. boxes, rural addresses, and standard domestic parcel destinations.

International Shipping

Support global parcel shipments through available USPS international services.

Customs Documentation

Generate required customs forms for international shipments when destination and package details are available.

Flexible Delivery Options

Choose USPS services based on delivery speed, package type, destination, and cost requirements.

Small Parcel Fulfillment

Use USPS for small-parcel fulfillment across domestic, international, residential, P.O. box, and lightweight-package workflows.

Multi-Country Management

Handle domestic and international USPS orders from the same dashboard used for everyday parcel fulfillment.

The USPS tracking integration helps teams follow shipment status from label creation through delivery. Tracking details stay connected to the order record, giving fulfillment and customer service teams clearer visibility into in-transit, out-for-delivery, delivered, delayed, and exception statuses.

Shipduo also keeps USPS delivery status updates aligned with ecommerce, marketplace, ERP/order management, and fulfillment workflows.

• Priority Mail
• USPS Ground Advantage
• First-Class Mail
• Media Mail
• International USPS services
• Special handling services
• Service selection at checkout

Shipduo works as a USPS shipping platform for teams that need flexible USPS service selection, along with workflows for other parcel and freight carriers.

Accurate Cost Visibility

Real-time USPS pricing helps teams review parcel costs before dispatch.

Budget-Friendly Parcel Options

Choose USPS services that match package size, delivery speed, destination, and cost goals.

Reduced Fulfillment Costs

Automation and integrated label workflows help reduce labor, repeated data entry, and avoidable shipment errors.

Shipping Spend Insight

Track USPS spend over time to improve carrier strategy, service selection, and fulfillment planning.

Checkout Price Transparency

Present customers with more accurate USPS rates during checkout so shipping expectations align with fulfillment costs.

Workflow Connectivity

The USPS API integration supports API-based shipping workflows for teams that need connected order data, parcel labels, shipment status, and carrier activity in one shipping process.