How to split a large inventory csv for bulk upload
- Step 1Check your platform's row limit — Look up the maximum rows per upload for Amazon Seller Central, Shopify, or your ERP.
- Step 2Export the full inventory CSV — Download from your PIM, ERP, or inventory system.
- Step 3Drop into CSV Row Splitter and enter the chunk size — Set the row count to match the platform limit.
- Step 4Upload each chunk — Submit the batch files to the platform upload queue in sequence.
Frequently asked questions
Does the row splitter keep variants together in Shopify exports?+
It splits by row count only. Shopify variant rows may be split across chunks. For variant-safe splitting, sort by product handle first.
What is Amazon's row limit per inventory upload?+
Amazon recommends a maximum of around 50,000 rows per file, though the actual limit varies by report type. Check your seller account's upload guide.
Can I automate this for recurring inventory refreshes?+
The Pro API exposes the row splitter programmatically for recurring workflows.
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