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Strategy9 min readMarch 10, 2026

Multi-Marketplace Inventory Management: Trendyol, Hepsiburada & Shopify Sync

Selling on 3+ marketplaces? Stock sync is your biggest headache. Here's the solution.


Challenges of Multi-Channel Inventory Management

The biggest risk for multi-marketplace sellers: overselling. If a product sold on Trendyol doesn't update on Hepsiburada, you face customer loss and penalties.

Stock Sync Strategies

  • Central inventory pool — All channels fed from a single stock source.
  • Buffer stock — Safety stock per channel. 10-15% buffer per channel.
  • Real-time webhooks — Update stock across all channels at the moment of sale.
  • Auto-reorder — Automatic purchase orders for products below threshold.

Result

Our clients see an average 94% reduction in stock errors after sync implementation.


Want to apply these strategies to your operation?