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The Items report shows which products drive the most revenue — broken down by name, brand, category, SKU, and variant. It populates from the items array you pass inside conversion events.

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How it works

Hardal extracts item data from any event that includes an items array: purchase, add_to_cart, view_item, begin_checkout, and others. The Items report aggregates this across all purchases.

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What your events need

Include an items array in your purchase event at minimum. The more fields you provide, the richer the breakdown. 
hardal.track("purchase", {
  transaction_id: "TXN-789",
  value: 149.99,
  currency: "USD",
  items: [
    {
      item_id: "SKU-001",           // required — unique product ID
      item_name: "Wireless Headphones",  // required — product name
      item_brand: "Acme Audio",
      item_category: "Electronics",
      item_category2: "Audio",
      item_category3: "Headphones",
      item_sku: "WH-100",
      price: 99.99,                 // required — unit price
      quantity: 1,                  // required — units purchased
      item_first_price: 129.99,     // original price before discount
      item_tax: 8.00,
      item_variant: "Black",
      item_variant_id: "WH-100-BLK"
    },
    {
      item_id: "SKU-002",
      item_name: "USB-C Cable",
      item_brand: "Acme Cables",
      item_category: "Accessories",
      price: 9.99,
      quantity: 2,
      item_sku: "UC-10"
    }
  ]
});

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Required vs optional fields

FieldRequiredDescription
item_idYesUnique product identifier
item_nameYesProduct name
priceYesUnit price at time of purchase
quantityYesNumber of units
item_brandNoBrand name
item_categoryNoPrimary category
item_category2NoSecondary category
item_category3NoTertiary category
item_skuNoStock keeping unit
item_variantNoVariant name (e.g. colour, size)
item_variant_idNoUnique variant identifier
item_first_priceNoOriginal price before discounts
item_taxNoTax for this item

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Common setup issues

SymptomLikely causeFix
Items report is emptyitems array missing from purchaseAdd items to your purchase event
Product revenue is wrongprice × quantity not matchingEnsure price is the unit price, not line total
Same product appears twiceDifferent item_id values usedUse a consistent product identifier across all events
Categories not showingitem_category not passedAdd category fields to your items

View Items report

See your live product performance in the analytics dashboard