Learn Editor: Update storage-files-migration-overview.md

Author: schoag-msft

articles/storage/files/storage-files-migration-overview.md

@@ -196,7 +196,7 @@ The following table classifies Microsoft tools and their current suitability for
 |![Yes, recommended](media/storage-files-migration-overview/circle-green-checkmark.png)| [Azure Storage Migration Program](../solution-integration/validated-partners/data-management/azure-file-migration-program-solutions.md) | Supported. | Full fidelity.* |
 |![Yes, recommended](media/storage-files-migration-overview/circle-green-checkmark.png)| Storage Migration Service | Indirectly supported. Azure file shares can be mounted as network drives on SMS target servers. | Full fidelity.* |
 |![Yes, recommended](media/storage-files-migration-overview/circle-green-checkmark.png)| Data Box (including the [data copy service](../../databox/data-box-deploy-copy-data-via-copy-service.md) to load files onto the device)| Supported. </br>(Data Box Disks doesn't support large file shares) | Data Box and Data Box Heavy fully support metadata. </br>Data Box Disks does not preserve file metadata. |
-|![Not fully recommended](media/storage-files-migration-overview/triangle-yellow-exclamation.png)| AzCopy </br>latest version | Supported but not fully recommended. | Doesn't support differential copies at scale, and some file fidelity might be lost. </br>[Learn how to use AzCopy with Azure file shares](../common/storage-use-azcopy-files.md) |
+|![Not fully recommended](media/storage-files-migration-overview/triangle-yellow-exclamation.png)| AzCopy </br>latest version | Supported but not fully recommended. | AzCopy sync supports up to 10 million files per AzCopy job and some file fidelity might be lost as AzCopy uses the Azure Files REST APIs for copying content to your Azure Files share. </br>[Learn how to use AzCopy with Azure file shares](../common/storage-use-azcopy-files.md) |
 |![Not fully recommended](media/storage-files-migration-overview/triangle-yellow-exclamation.png)| Azure Storage Explorer </br>latest version | Supported but not recommended. | Loses most file fidelity, like ACLs. Supports timestamps. |
 |![Not recommended](media/storage-files-migration-overview/circle-red-x.png)| Azure Data Factory | Supported. | Doesn't copy metadata. |
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