CSV Requirements

• File must contain exactly two columns: ProductId and Quantity.
• Columns must appear in the exact order shown.
• ProductId must be a valid GUID.
• Quantity must be a whole number greater than or equal to 0.
• Maximum 5000 data rows allowed (excluding header).
• Maximum file size: 100 MB.
• First row must be a valid header.
• No extra or missing columns allowed.

Example

ProductId,Quantity
550e8400-e29b-41d4-a716-446655440000,10
8d12b9f5-3e37-4e11-a98a-4455ae76a280,5