An online clothing retailer is already collecting eCommerce events (like item_id and price) in Google Analytics. They now want to upload a single file containing additional product attributes from their inventory system — like color, style, and material — to enrich their existing reports. Which Google Analytics feature is specifically designed for this type of bulk upload to join offline information with online records?

Data Import lets Google Analytics join offline data you upload with event data already collected in the property. A CSV file from an inventory system can enrich item-level reporting with product attributes. This is designed for adding external business data to existing Analytics records rather than sending new interaction events. The imported attributes can improve analysis of ecommerce performance across product details.