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New: Ship With Walmart scan form APIs

Date: June 22, 2026

We introduced new Ship With Walmart (SWW) scan form APIs that allow sellers to create and download scan forms (shipping manifests) for eligible shipments. A scan form groups multiple shipping labels into a single carrier-scannable document, helping streamline end-of-day (EOD) pickup and shipping workflows. Currently, scan forms are supported for USPS shipments only.

What changed

Added

  • New API to create scan forms for labels:

    • POST /v3/shipping/scan-form

  • New API to download scan forms using manifestId:

    • GET /v3/shipping/scan-form?manifestId={manifestId}

  • Support for grouping up to 4,000 tracking numbers into a single scan form

  • Idempotency support using scanFormId

  • Sandbox support for scan form testing and validation

Why it matters

These APIs simplify carrier pickup workflows by allowing multiple shipping labels to be grouped into a single manifest document.

Benefits include:

  • Faster carrier pickup processing
  • Reduced operational overhead during EOD closeout
  • Easier automation of shipping workflows
  • Safer retry handling using idempotent scanFormId requests
  • Improved warehouse and fulfillment efficiency for high-volume shipping operations

Next steps