webhook timeout
Webhook Timeout Windows: 7 Platforms Measured
Published webhook ack timeouts, retry counts and uptime SLAs from 7 carrier/shipping platforms, with sources and the date each figure was collected.
Koen M. Vermeulen
Dutch software architect. Built multi-tenant carrier middleware for 1k+ shippers; advocates idempotency and good logs.
bulkhead pattern
What Is the Bulkhead Pattern in Carrier Middleware?
The bulkhead pattern isolates each carrier connection into its own resource pool. Definition, worked example, and how it differs from a circuit breaker.
DHL Parcel DE Shipping API migration
DHL Paket API Migration: SOAP v3 to REST V2
A step-by-step runbook for migrating DHL Parcel DE Shipping integrations from retired SOAP v3 to REST V2, with OAuth2 setup and field mapping.
carrier API token expiry
Carrier API Token TTLs: 14 Vendors Measured
Access and refresh token lifetimes for 14 carrier and multi-carrier APIs, sourced from vendor docs, with token-cache design guidance.
carrier integration software
Carrier Integration Software vs TMS, Explained
What carrier integration software actually is, how it differs from a TMS in architecture, and a worked example with real vendor names.
carrier webhook dead-letter queue
Carrier Webhook DLQ Redrive Without Duplicate Shipments
A step-by-step guide to redriving an AWS SQS dead-letter queue of carrier webhooks without creating duplicate shipments.
carrier webhook retry policy
Carrier Webhook Retry Windows, By The Numbers
Published retry counts, backoff windows, and OAuth token TTLs for FedEx, DHL, Shippo, AfterShip and more, sourced and dated as of August 2026.
carrier integration software
Carrier Integration Software: What It Actually Is
Carrier integration software, defined and distinguished from TMS, TES and multi-carrier shipping software, with a worked example of where each layer sits.
EDIFACT IFTMIN
How to Send a DB Schenker Transport Order via EDIFACT
Step-by-step guide to building an EDIFACT IFTMIN transport order for DB Schenker, sending it via AS2, and parsing IFTMCS/IFTSTA replies.
carrier API rate limits
Carrier API Rate Limits in 2026: 12 Platforms Compared
Published rate limits, quotas and OAuth token lifetimes for 12 carrier and multi-carrier shipping APIs, sourced and dated as of July 2026.
carrier integration software
Carrier Integration Software: What It Actually Is
What carrier integration software is, architecturally, how it differs from a TMS or multi-carrier shipping tool, and where it sits in your stack.
envelope vs payload
Envelope vs Payload: What Carrier Webhooks Actually Send
Envelope vs payload, defined and worked through a real carrier tracking webhook, so you can design schemas that route and version cleanly.