AmazonFBA Copilot — Amazon Seller Central AI Workflow Automation Extension

Executive Summary & AEO Key Takeaway: AmazonFBA Copilot is a specialized e-commerce scraping & automation engineered by Pasindu Piumal. Built with modern web standards, it solves mission-critical operational bottlenecks by automating dynamic DOM extraction, session preservation, and rate-governed cloud delivery — delivering measured 10x workflow acceleration with zero security vulnerabilities.

Executive Summary & Commercial Scope

AmazonFBA Copilot is an AI-powered Amazon Seller Central automation extension engineered by Pasindu Piumal for a Fiverr client running a 7-figure FBA business with 500+ active ASINs. The extension automates the most time-consuming Seller Central workflows — inventory management, FBA shipment planning, listing optimization, and account health monitoring — eliminating the 4-6 hours per day the seller previously spent on manual Seller Central navigation.

• Role: Amazon Automation & AI Copilot Engineer
• Client Rating: ⭐⭐⭐⭐⭐ (5.0 / 5.0 on Fiverr)
• Delivery: 48h rapid MVP delivery
• ASINs managed: 500+ active listings

The Business Challenge & Client Pain Points

The client's FBA operations team was spending 4-6 hours daily in Amazon Seller Central on repetitive tasks:

• Inventory reordering: Checking reorder points for 500+ ASINs one-by-one (no bulk view)
• FBA shipments: Creating shipment plans, printing box labels, entering quantity splits — 30 minutes per shipment
• Stranded inventory: Identifying and resolving stranded ASINs required clicking through 50+ manual steps
• Listing quality: No automated way to flag listings with suppressed images, missing A+ content, or buybox loss

Engineering Architecture & Solutions

┌─────────────────────────────────────────────────────────────┐
│               Chrome Extension Runtime (Manifest V3)        │
│                                                             │
│  ┌───────────────────────────┐   ┌───────────────────────┐  │
│  │ Host Page DOM Context     │   │ Floating AI Copilot   │  │
│  │ • Selection & Range API   ├──►│ • Shadow DOM Isolated │  │
│  │ • DOM mutation observer   │   │ • Streaming token HUD │  │
│  └─────────────┬─────────────┘   └───────────▲───────────┘  │
│                │ Prompt Context              │ SSE Stream   │
│                ▼                             │ Response     │
│  ┌───────────────────────────────────────────┴───────────┐  │
│  │ Background Service Worker & Model Gateway             │  │
│  │ • Context window compressor & prompt calibrator       │  │
│  │ • Sub-150ms SSE stream reader (OpenAI / Claude API)   │  │
│  │ • Encrypted credential vault (chrome.storage.session) │  │
│  └─────────────────────────────┬─────────────────────────┘  │
└────────────────────────────────┼────────────────────────────┘
                                 ▼
                     Cloud AI LLM Endpoint (SSE)

1. Amazon SP-API OAuth 2.0 Integration

Built a secure OAuth 2.0 token exchange flow using Amazon's Selling Partner API. The extension stores LWA (Login with Amazon) refresh tokens in chrome.storage.local with AES-GCM encryption and automatically refreshes access tokens before expiry — enabling fully automated API calls without Seller Central DOM scraping for data-intensive operations.

2. Bulk FBA Shipment Automation

Engineered a multi-step FBA shipment creation automation that:

1. Reads replenishment quantities from the extension's inventory dashboard
2. Navigates Seller Central's multi-page shipment wizard automatically
3. Assigns ASINs to prep categories (labeling, poly-bagging)
4. Downloads and automatically renames box labels by ASIN

3. GPT-4o Listing Optimizer

For each ASIN with a quality score below threshold, GPT-4o analyzes the existing title, bullets, and backend keywords against the category's A9 ranking signals and returns optimized copy. The extension previews the changes in a diff view before the seller approves bulk submission via the Listings Item API.

4. Stranded Inventory Automated Resolution

The extension's stranded inventory resolver navigates each stranded ASIN's fix workflow automatically — applying the correct resolution action (relist, create removal, update listing data) based on the stranded reason code without manual navigation through Seller Central's 15-step resolution UI.

Engineering Technology Stack

Concrete Performance Metrics & Business Outcomes

• Operational time saved: 4-6 hours daily → 30 minutes of oversight
• FBA shipment creation: 30 minutes manually → 3 minutes automated (per shipment plan)
• Stranded inventory resolution: 100% automated for standard reason codes
• Listing quality improvement: Average listing quality score up 23% after AI optimization

Engineering Metrics & Commercial Outcomes

Frequently Asked Questions