I will fix shipping API, tracking, rates, labels and carrier integration issues

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hallilully
H
hallilully
Halli

About this gig

Is your shipping API failing, showing incorrect rates, not generating labels, or leaving tracking information stuck? I can help fix it.


I will troubleshoot and resolve shipping API, tracking, shipping rates, shipping labels, carrier integration, and automation issues so your orders can move smoothly from checkout to delivery.


I can work with UPS, FedEx, DHL and other shipping services, including API connections, authentication, webhooks, rate calculations, tracking updates, label generation, and order synchronization.


What I can fix:

  • Shipping API errors
  • Incorrect or missing rates
  • Tracking not updating
  • Shipping labels not generating
  • Carrier API connection issues
  • Webhook and automation failures
  • Order and fulfillment synchronization


Send me your current setup, error message, carrier, and what is not working. Ill review the issue and provide the right solution.

Get to know Halli

Halli

Shipping API integration expert

  • FromUnited Kingdom
  • Member sinceJul 2026
  • Avg. response time1 hour
  • Languages

    English, Portuguese
I help businesses, startups, and entrepreneurs solve shipping and ecommerce integration problems with reliable API solutions. From shipping API, Shopify API, tracking API, ShipStation, FedEx, DHL and UPS integrations to REST API, webhooks, order tracking and shipping automation, I build clean, scalable systems that work. I focus on accurate data, dependable workflows, easy maintenance and clear communication throughout the project. Contact me before ordering so we can discuss your shipping needs and the best solution.

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