Multi-marketplace dashboards.

One dashboard. Every marketplace.

If you're selling on more than one platform, you already know the pain: juggling Shopify Admin, Amazon Seller Central, eBay Seller Hub, Etsy Manager, TikTok Shop Center, Walmart Seller Center, Whatnot, and Fanatics Live in eight different browser tabs. Inventory drifts. Orders get missed. Reporting becomes a nightmare of CSV exports and manual reconciliation.

We build custom multi-marketplace dashboards that consolidate everything into a single Google Sheets-backed control panel. Real-time inventory sync, unified order queue, cross-marketplace reporting, and automated routing — all built on Google Apps Script for zero hosting fees and instant deployment.

One client cut their daily order-processing time from 4 hours to 35 minutes after we unified their TikTok Live, Whatnot, and Shopify orders into a single queue with auto-routed shipping labels.

Marketplace integrations we deliver

What's included in every marketplace dashboard

• Real-time inventory sync — single source of truth in Sheets, pushed to all connected stores via bulk API operations
• Cross-store variant matching — products matched by SKU, title, or fuzzy logic across stores
• Self-chaining triggers — large catalog operations resume automatically across Apps Script's 6-minute execution limit
• Webhook handlers for instant order capture (TikTok Shop, Shopify, Stripe events)
• Multi-role authentication — admin, manager, fulfillment, viewer roles with PIN-hash & session tokens
• Unified reporting module — sales by platform, by day, by product, by region
• Bulk operations UI — pause / resume / dry-run modes for catalog updates
• Comprehensive audit log — every API call captured with timestamp, user, payload

Common project shapes

Live selling dashboard

For trading card retailers, fashion sellers, and live commerce: real-time order capture from TikTok Live, Whatnot, Fanatics, and Shopify into a unified shipping queue with multi-role access (admin, seller, shipper). Includes session tracking, viewer counts, sales-per-hour reporting, and automated label generation.

Inventory sync engine

For sellers running Shopify + Amazon + eBay: a single Sheets-based inventory master that pushes updates via Shopify Bulk API, Amazon SP-API listings updates, and eBay revise-item calls. Self-healing on API failures, bulk-safe with rate-limit awareness.

Order management hub

For multi-channel sellers: every order from every platform flows into a single queue with status pipelines (new → picked → packed → shipped → delivered). Automated shipping rate calculation, label generation via EasyPost or Shippo, and customer notification emails.

Marketplace performance dashboard

For data-driven sellers: scheduled reports pulling Amazon Ads spend, Shopify revenue, eBay fees, TikTok Shop conversion rates into a unified KPI dashboard with weekly/monthly email digests.

Why Sheets-backed marketplace dashboards work

The "boring" answer: your operations team already knows how to use a spreadsheet. They don't need training. They can edit data directly when something needs fixing. They can sort, filter, pivot, and chart without waiting for a developer.

Combined with Apps Script's deep Google Workspace integration (Drive for image storage, Gmail for customer comms, Calendar for fulfillment scheduling), you get an enterprise-grade marketplace ops platform at a fraction of the cost of custom-built SaaS — and you fully own it forever.

Pricing

• Single marketplace integration — From $750 (1–2 weeks)
• 2–3 marketplace unified dashboard — From $1,500 (2–4 weeks)
• Full multi-marketplace platform — From $3,500 (4–8 weeks)
• Live-selling dashboard — From $2,500 (3–5 weeks)

Available through Fiverr Pro with escrow protection or directly via WhatsApp.

FAQs

Can you sync inventory if my products have different SKUs across stores?

Yes. We build cross-store variant matching with multiple strategies — SKU, ASIN, GTIN/UPC, exact title match, or fuzzy title with manual override. The match logic is configurable per-store.

What about catalog sizes? Will Apps Script handle 50,000 products?

Yes — with the right architecture. We use self-chaining time-driven triggers that process catalogs in safe batches (typically 200–500 SKUs per execution), saving progress to PropertiesService. A 50K-product full sync completes in under an hour and survives any single-execution crash.

How do you handle API rate limits?

Each marketplace has different limits (Shopify is generous with bulk ops, Amazon SP-API is strict, Etsy has token-bucket throttling). We build per-API rate limit awareness into every integration — exponential backoff, retry queues, and bulk-where-possible.

Can you integrate with my existing systems?

Yes — we regularly integrate with NetSuite, QuickBooks, Xero, ShipStation, ShipBob, EasyPost, Shippo, and any custom backend that exposes a REST or GraphQL API. Bring your stack, we'll wire it up.