---
title: Why did my file upload fail?
description: "A file upload may fail or process incorrectly if the uploaded file contains multiple orders or pack lists. Upload one order only, as files with multiple orders may not process correctly.\n\nIf your upload does not work, check the file format first. Make sure it is a PDF, Word, or Excel file. Then check whether the file contains only one pack or order. If the file still does not process correctly, review the file layout and contact your COS representative if support is needed."
---
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# Why did my file upload fail?
A file upload may fail or process incorrectly if the uploaded file contains multiple orders or pack lists. Upload one order only, as files with multiple orders may not process correctly.
If your upload does not work, check the file format first. Make sure it is a PDF, Word, or Excel file. Then check whether the file contains only one pack or order. If the file still does not process correctly, review the file layout and contact your COS representative if support is needed.
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