{"id":29701,"date":"2025-06-25T15:47:39","date_gmt":"2025-06-25T15:47:39","guid":{"rendered":"https:\/\/synder.com\/blog\/?p=29701"},"modified":"2026-05-01T13:19:39","modified_gmt":"2026-05-01T13:19:39","slug":"automate-inventoryand-sales-sync-from-shopify-and-amazon-to-quickbooks-online","status":"publish","type":"post","link":"https:\/\/synder.com\/blog\/automate-inventoryand-sales-sync-from-shopify-and-amazon-to-quickbooks-online\/","title":{"rendered":"How to Automate Inventory Sync & Multichannel Reconciliation Between Shopify, Amazon & QuickBooks Online"},"content":{"rendered":"\n

Selling on both Shopify and Amazon while managing your finances in QuickBooks Online often turns into matched numbers and missing details: inventory counts drift, sales show up in the wrong places, and returns get overlooked. And when it\u2019s time to close the books, you\u2019re stuck untangling it.<\/p>\n\n\n\n

It doesn\u2019t have to be this way. With Synder<\/a>, you can link all three platforms into one smooth system, where inventory stays accurate, sales get recorded where they belong, and your financials are clean, all without manual work.<\/p>\n\n\n\n

How to sync Shopify and Amazon stock levels with QuickBooks Online using Synder<\/strong><\/h2>\n\n\n
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\"How<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

1. Connect your accounts<\/strong><\/h3>\n\n\n\n

First, you’ll create a Synder account (can be a 15-day free trial<\/a>). From there, it’s pretty straightforward to link up your Shopify, Amazon, and QuickBooks Online accounts. The system walks you through the whole setup, and once that’s done, Synder can start pulling sales data from all your channels and sending it right over to QuickBooks.<\/p>\n\n\n\n

See detailed integration guides for<\/em> <\/em>Shopify<\/em><\/a> and<\/em> <\/em>Amazon<\/em><\/a>.<\/em><\/p>\n\n\n\n

2. Choose the sync mode <\/strong><\/h3>\n\n\n\n

If you need to keep inventory counts up to date in QuickBooks Online, Per Transaction Sync<\/strong> is the way to go. Every sale, refund, and fee is recorded individually, which means Synder can adjust product quantities in real time. For example, if a customer buys three items on Shopify, QuickBooks will reflect all three transactions with the correct inventory changes. This is the only sync mode that supports full inventory tracking.<\/p>\n\n\n\n

3. Set up inventory tracking in QuickBooks<\/strong><\/h3>\n\n\n\n

Next, head into your QuickBooks settings and turn on inventory tracking. That’s the key step that lets Synder automatically update your stock levels. And if your SKUs match up across all your platforms, the setup is much easier.<\/p>\n\n\n\n

4. Sync & match your products<\/strong><\/h3>\n\n\n\n

During the sync, Synder looks for matching product names or SKUs in your QuickBooks. When a match is found, it updates the inventory for that item automatically. If no match exists, Synder can create a new product in QuickBooks using details pulled from Shopify or Amazon.<\/p>\n\n\n\n

5. Track COGS automatically<\/strong><\/h3>\n\n\n\n

Synder uses your cost data from QuickBooks to figure out the cost of goods sold for every sale. This helps you keep a really accurate eye on your profit margins without having to crunch any numbers by hand.<\/p>\n\n\n\n

6. Record returns and inventory changes<\/strong><\/h3>\n\n\n\n

When a customer sends something back, or Amazon reports a refund, Synder automatically updates your inventory count in QuickBooks. It does the same for any write-offs or other adjustments, too. This way, you avoid ending up with incorrect stock numbers.<\/p>\n\n\n\n

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