Most integration teams discovering FAPI 2.0 implementation aren't prepared for the infrastructure reality check that comes with sender-constrained tokens. Both UPS and FedEx moved to OAuth 2.0 authentication by 2024, but many standard web servers reject headers larger than 8KB by default. Here's what
Your UPS account just threw another authentication error. FedEx is demanding certificate renewal again. DHL's regional API keys are scattered across three different test environments. Sound familiar? The carrier integration landscape is shifting under our feet. In 2024 most of the shipping carriers migrated to oauth based authentication
Over 61% of organizations are now using GraphQL, yet most carrier integration teams stick with REST without understanding the performance implications. After testing both approaches across DHL, UPS, and FedEx APIs, we've gathered concrete data on which architecture delivers better results for shipping operations. The choice between GraphQL
API downtime surged by 60% between Q1 2024 and Q1 2025, with average uptime dropping from 99.66% to 99.46%. This translates to approximately 10 extra minutes of downtime per week and close to 9 hours across a year. For carrier integration teams managing multi-carrier shipping APIs, this isn&
API authentication has become a battleground. Between Q1 2024 and Q1 2025, average API uptime fell from 99.66% to 99.46%, resulting in 60% more downtime year-over-year, while 99% of organizations experienced API security issues in the past 12 months. DORA fully applies from 17 January 2025, and the
European shippers learned October 2025's lesson the hard way. While your application monitoring tools registered healthy systems and normal CPU usage, customers couldn't check out. 72% of implementations face reliability issues within their first month of production deployment, and between Q1 2024 and Q1 2025, average
UPS's mandate to migrate to OAuth 2.0 authentication by August 2024 arrived at the worst possible time. While carrier API OAuth security teams scrambled to meet integration deadlines, the cybersecurity landscape witnessed a seismic shift in 2024-2025 as threat actors, led by groups like ShinyHunters (UNC6040), systematically
Between Q1 2024 and Q1 2025, average API uptime fell from 99.66% to 99.46%, resulting in 60% more downtime year-over-year. That number represents 350,000+ carrier integration teams discovering their monitoring systems weren't built for multi-carrier environments where FedEx, DHL, and UPS APIs all throttle simultaneously
API downtime surged by 60% between Q1 2024 and Q1 2025, with average uptime dropping from 99.66% to 99.46%. For carrier integration teams, this translates to something more troubling: duplicate shipments and inventory mismanagement when retry logic fails. The October 2025 carrier API outages revealed that most idempotency
Enterprise TMS teams managing carrier integrations for UPS, FedEx, DHL and other major carriers face a stark reality: over 90% of organizations report downtime costs exceeding $300,000 per hour, with this average holding true even for small and midsize businesses up to 200 employees. Yet most teams still rely
FedEx Freight currently handles roughly 90,000 shipments per day, operates more than 350 service centers across North America, and generates nearly $9 billion in annual revenue, so when this division becomes an independent company by June 2026, the integration challenges for enterprise TMS platforms won't be minor.
Your webhook endpoints pass every sandbox test. Your rate requests return perfect responses. Your authentication flow works flawlessly. Then you deploy to production and 72% of implementations face reliability issues within their first month. Sound familiar? The carrier API testing reliability gap isn't just about different environments—it&