I will fix your pos and ecommerce inventory webhook sync errors


About this gig
Are you terrified that a holiday flash sale will cause your physical POS register and online store to lose sync, leading to massive overselling and angry customers?
When webhooks break between systems like Square, Clover, Lightspeed, or Shopify POS and your web catalog, inventory counts stop updating in real time. Customers buy items already sold out in-store, destroying your fulfillment metrics.
I diagnose and repair broken API webhooks and inventory synchronization failures.
WHAT I FIX & VERIFY:
- Broken or dropping API webhooks causing delayed stock updates
- Variant SKU mapping mismatches between physical POS terminals and online stores
- Automated inventory loop verification tests (simulating simultaneous purchases)
- Error log cleanup and alert monitoring setup
Don't risk overselling your stock during peak season. Send your store and POS setup details to get started!
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Get to know Ashley Wilson
ECommerce Backend, Performance and Infrastructure Specialist
- FromUnited States
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, Spanish, Portuguese, Italian, Dutch, French, German
My Portfolio
FAQ
Why do inventory webhooks fail during peak traffic?
High traffic volumes can cause timeout errors, dropped packets, or queue bottlenecks between external POS systems (like Square, Clover, or Lightspeed) and your e-commerce database, halting automated stock updates.
What information do you need to diagnose the sync error?
I need access to your store backend dashboard, API/webhook logs, and connection details for your physical POS or inventory management system.
Can you prevent future overselling issues?
Yes. I clean up asynchronous queue processing, correct SKU variant mappings, and verify end-to-end webhook delivery triggers so stock counts update instantaneously.

