I will fix your pos and ecommerce inventory webhook sync errors

A
ashl3y_wil
A
ashl3y_wil
Ashley Wilson

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!


Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Ashley Wilson

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
I am a specialized E-Commerce Backend Performance & Infrastructure Engineer helping Shopify and WooCommerce merchants scale for peak traffic. My work eliminates invisible backend bottlenecks that kill conversions: I optimize mobile checkout speed, deploy JSON-LD schema for AI search visibility, execute safe WooCommerce HPOS database migrations, and repair POS inventory webhooks to prevent overselling. Stop losing revenue to slow code and broken synchronization. Let’s make your store lightning-fast, fully compliant, and bulletproof for Q4.

My Portfolio