> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Products by Vendor, BigCommerce

> Products by Vendor for BigCommerce stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it.

**Metrics type:** [Supporting Metrics](/nerve-centre/overview#metrics-types-explained)  •  **Category:** [Ecommerce Platform](/nerve-centre/connectors#connectors-by-type)

## At a glance

> Catalogue product count grouped by `brand` (BC's vendor / brand field). Tells you how the catalogue is split across suppliers, which brands carry the catalogue depth, and where supplier concentration risk lives. The brand split is a leading indicator for supplier-relationship management.

|                                 |                                                                                                                                                                                                                                                                                                                                                                                                      |
| ------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **What it counts**              | `GROUP BY brand` over every product in the catalogue. Each product is associated with exactly one brand value; if `brand` is empty, the product falls into an "Unassigned" bucket.                                                                                                                                                                                                                   |
| **VAT / tax treatment**         | n/a, catalogue metadata.                                                                                                                                                                                                                                                                                                                                                                             |
| **Shipping**                    | n/a.                                                                                                                                                                                                                                                                                                                                                                                                 |
| **Discounts**                   | n/a (though brand-level promotion targeting is a common BC pattern).                                                                                                                                                                                                                                                                                                                                 |
| **Refunds**                     | n/a.                                                                                                                                                                                                                                                                                                                                                                                                 |
| **Cancelled / voided orders**   | n/a.                                                                                                                                                                                                                                                                                                                                                                                                 |
| **Currency**                    | n/a.                                                                                                                                                                                                                                                                                                                                                                                                 |
| **Channels / sources**          | Catalogue-wide. Some BC channels use the `brand` field for channel-specific routing (Amazon's brand registry mapping, Google Shopping's brand attribute). Brand value affects channel feed acceptance.                                                                                                                                                                                               |
| **Brand vs Vendor terminology** | BC uses `brand` as the field name. In merchant practice this can mean: (a) the actual brand the customer sees ("Nike", "Apple"), (b) the supplier the merchant buys from (could differ from brand for white-label resellers), (c) the manufacturer (which differs from brand for licensed products). **Be intentional about which definition you use; different stakeholders need different views.** |
| **Why concentration matters**   | A catalogue dominated by one brand (>40% of SKUs) carries supplier-relationship risk: pricing changes, stock-out risk, distribution-agreement changes all hit you disproportionately. Diversified catalogues are more resilient but harder to manage.                                                                                                                                                |
| **Common patterns**             | Multi-brand retailers (department-store style) typically have 50-200 brands with the top 10 representing 60-80% of catalogue. Single-brand stores (DTC) have one or two brands and a long tail of accessories/collabs. House-brand retailers blend a private label (often 50-70% of catalogue) with branded supplements.                                                                             |
| **B2B Edition**                 | B2B catalogues often duplicate brand entries because procurement-side imports treat each supplier-SKU pair as separate. Cleanup involves consolidating duplicate brand names ("3M", "3M Company", "3M Inc").                                                                                                                                                                                         |
| **Empty brand bucket**          | Products without a brand value default to "Unassigned" in this card. Marketplace feeds (Amazon, Google Shopping) usually require a brand, so the Unassigned bucket is also the marketplace-feed-eligibility risk bucket.                                                                                                                                                                             |
| **Time window**                 | `RT` (real-time, refreshed each catalogue sync)                                                                                                                                                                                                                                                                                                                                                      |
| **Alert trigger**               | None at this card.                                                                                                                                                                                                                                                                                                                                                                                   |
| **Roles**                       | owner, operations                                                                                                                                                                                                                                                                                                                                                                                    |

## Calculation

```
GROUP BY brand
  WHERE date BETWEEN [period_start, period_end]
```

## Worked example

A US homewares brand on BigCommerce Pro that resells multi-brand inventory plus a private label, snapshot at 12 Apr 26.

| Brand                 | Product count | Share    | Notes                                   |
| --------------------- | ------------- | -------- | --------------------------------------- |
| House Label           | 2,180         | 33.2%    | Private label, primary margin driver    |
| Brand A               | 980           | 14.9%    | Major supplier, multi-year contract     |
| Brand B               | 720           | 11.0%    | Secondary supplier                      |
| Brand C               | 540           | 8.2%     | Niche premium                           |
| Brand D               | 380           | 5.8%     | Newer collab                            |
| Long tail (40 brands) | 1,720         | 26.2%    | 30-100 SKUs each                        |
| Unassigned            | 45            | 0.7%     | **Brand field empty, marketplace risk** |
| **Total catalogue**   | **6,565**     | **100%** |                                         |

What's interesting:

1. **House Label at 33.2% is healthy private-label concentration.** Mature multi-brand retailers typically run 25-40% on house brand; the margin uplift on private label (60-80%) vs branded (25-40%) is the financial case. Below 25% suggests under-developed private label; above 40% suggests over-reliance.
2. **Brand A at 14.9% is the supplier-concentration risk.** A 15% catalogue share + multi-year contract means a price increase, a stockout, or a contract dispute on Brand A hits 15% of the catalogue. Most stores diversify when single-brand share approaches 20%.
3. **The 26.2% long-tail across 40 brands is structurally interesting.** Each long-tail brand carries 30-100 SKUs on average; together they make up a quarter of catalogue. **Long-tail brands collectively are the 2nd-largest "brand" but are operationally fragmented.** Consolidation potential: drop the bottom 10-15 brands with lowest sell-through, simplifies merchandising significantly.
4. **45 Unassigned products is small but consequential.** These products lack a brand value; Amazon Channel Manager and Google Shopping require a brand attribute and will reject these from feeds. **Fix the brand field for these 45 products before they affect marketplace listing eligibility.** Often the cause is a CSV import where the supplier didn't provide brand data; a quick mapping fix.
5. **Brand-level revenue often differs from brand-level catalogue share.** A brand with 5% of products may generate 25% of revenue (high-velocity) or 1% (long-tail catalogue padding). Pair with [Top Products](/nerve-centre/kpi-cards/bigcommerce/top-products-by-revenue) and [BC Top SKUs Revenue](/nerve-centre/kpi-cards/bigcommerce/top-skus-by-revenue) for the revenue-weighted brand view.

The strategic playbook:

1. **Audit the Unassigned bucket urgently.** Empty brand fields break marketplace feeds; fix in a one-time bulk update.
2. **Review supplier-concentration risk.** Brands above 15% catalogue share + above 25% revenue share need succession planning, what's the diversification strategy if that supplier fails?
3. **Prune long-tail brands annually.** The 40th-ranked brand probably represents 0.5-1.5% of catalogue and 0.2-0.8% of revenue. Operations cost (separate supplier relationship, separate purchase orders, separate returns process) often outweighs the revenue contribution.
4. **Watch private-label growth deliberately.** House Label growth from 30% to 50% over 2-3 years is a pricing-and-margin transformation; it should be deliberate, not accidental.
5. **Cross-reference brand list with marketplace brand registry.** Amazon's Brand Registry requires verified brand ownership; non-registered brands lose access to A+ Content and Brand Analytics, materially hurting Amazon channel performance.

## Sibling cards merchants should reference together

| Card                                                                                   | Why pair it with Products by Vendor                                                          |
| -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
| [Products by Type](/nerve-centre/kpi-cards/bigcommerce/products-by-type)               | Type × brand combinations show whether brands stick to one type or span.                     |
| [Product Status](/nerve-centre/kpi-cards/bigcommerce/product-status)                   | Active vs disabled by brand; some brands may have higher disabled share (supplier disputes). |
| [Top Products](/nerve-centre/kpi-cards/bigcommerce/top-products-by-revenue)            | Revenue-weighted. Top brands by SKU may not be top brands by revenue.                        |
| [BC Top SKUs Revenue](/nerve-centre/kpi-cards/bigcommerce/top-skus-by-revenue)         | The revenue-by-brand view; complement to this catalogue-by-brand view.                       |
| [BC Revenue by Brand](/nerve-centre/kpi-cards/bigcommerce/revenue-by-brand)            | Direct revenue-side card for brand decomposition.                                            |
| [BC Margin by Brand](/nerve-centre/kpi-cards/bigcommerce/margin-by-brand)              | Margin-side. House label vs branded margin gap drives strategic decisions.                   |
| [Missing SEO Title Count](/nerve-centre/kpi-cards/bigcommerce/missing-seo-title-count) | SEO gaps cluster by brand (a single supplier importing without SEO data).                    |
| [BC Refunded Products](/nerve-centre/kpi-cards/bigcommerce/most-refunded-products)     | Brand-level return rates; some brands carry higher returns than others.                      |

## Reconciling against the vendor's own dashboard

**Where to look in BigCommerce Control Panel:**

[Catalogue → Brands](https://login.bigcommerce.com/deep-links/manage/catalog/brands) shows the master brand list with product counts. [Catalogue → Products](https://login.bigcommerce.com/deep-links/manage/products) supports filter by Brand.

For marketplace-feed validation, [Channel Manager](https://login.bigcommerce.com/deep-links/manage/channel-manager) shows which brands are eligible for which channels. Amazon Brand Registry verification status lives in Amazon Seller Central, not in BC.

**Why our number may legitimately differ from BC catalogue view:**

| Reason                                                                                                                     | Direction                  |
| -------------------------------------------------------------------------------------------------------------------------- | -------------------------- |
| **Case sensitivity / whitespace.** "3M", "3M ", "3m" treated as separate brands; BC's filter may collapse case in display. | Vortex IQ MORE granular    |
| **Empty brand handling.** We bucket null/empty as "Unassigned"; BC may show empty as "no value" filter.                    | Same data, different label |
| **Disabled products.** We include them; BC may filter to visible.                                                          | Vortex IQ HIGHER           |
| **Sync lag.** Recent brand changes propagate within 5-30 minutes.                                                          | Vortex IQ slightly LAGS    |

**Cross-connector reconciliation:**

| Card                                                                                                       | Expected relationship                                 | What causes legitimate divergence                                                                    |
| ---------------------------------------------------------------------------------------------------------- | ----------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |
| [`amazon_sp.amazon_brand_count`](/nerve-centre/amazon_sp/amazon_brand_count)                               | Amazon-side brand count for products listed on Amazon | Amazon Brand Registry only includes verified brands; BC includes all. Expect Amazon to be a subset.  |
| [`google_shopping.gs_brand_attribute_coverage`](/nerve-centre/google_shopping/gs_brand_attribute_coverage) | Google Shopping's brand attribute requirement         | Empty brand fields fail Google's feed validation; Unassigned bucket here = feed rejection on Google. |

**Same-metric documentation cross-reference:**

* [`shopify.products_by_vendor`](/nerve-centre/kpi-cards/shopify/products-by-vendor) (planned)
* [`adobe_commerce.products_by_vendor`](/nerve-centre/adobe_commerce/products_by_vendor) (planned)

## Known limitations / merchant FAQs

**My brand list has duplicates ("3M" and "3M Company"), how do I consolidate?**
Bulk-edit via BC API or admin UI. Sequence: identify the canonical name (usually shortest), bulk-update all products with the variant brand to use the canonical, verify counts match, then delete the now-empty variant brand. BC will warn before deleting a brand that still has products.

**Why are 45 products showing as Unassigned?**
Brand field is empty on those products. Common causes: (1) CSV import where supplier didn't provide brand data, (2) products created via API without brand specified, (3) house-label products where the merchant forgot to assign their own brand. Fix by bulk-editing those 45 products to set the appropriate brand.

**Should every product have a brand, even house-label?**
Yes. Marketplace feeds (Amazon, Google Shopping) require a brand attribute; products without one are rejected. For house-label, set brand = your store name or "House Label". The brand field shouldn't be empty for any sellable product.

**My private label is 50% of catalogue, is that healthy?**
Strategically interesting. 25-40% private label is the sweet spot for most multi-brand retailers, balances margin with breadth. 50%+ means private label is the dominant strategy; you're effectively a private-label brand using a multi-brand storefront, which works but changes the marketing approach.

**Why does Amazon reject some of my brands?**
Amazon's Brand Registry only accepts brands you've verified ownership of. Reseller brands (where you're not the brand owner) fall outside Brand Registry; you can still list them but lose access to A+ Content, Brand Analytics, and brand-protection tools. For brands you own, complete Brand Registry verification.

**My B2B catalogue duplicates branded products from retail, do I need separate brand entries?**
No. Same brand name should have one entry; per-channel availability handles the B2B vs retail split. Duplicating brands creates a maintenance burden.

**Can I see brand-level revenue from this card?**
Not directly. Pair with [BC Revenue by Brand](/nerve-centre/kpi-cards/bigcommerce/revenue-by-brand) for revenue or [BC Margin by Brand](/nerve-centre/kpi-cards/bigcommerce/margin-by-brand) for margin. The catalogue-share-vs-revenue-share gap is the most useful diagnostic; high catalogue / low revenue = under-performing brand.

**Why is my long tail so heavy?**
Common pattern in multi-brand retail. Each new supplier adds 30-100 SKUs; the long tail accumulates as brands stay on the platform after their initial launch loses momentum. The right move: annual review, drop bottom 10-15 brands by sell-through.

**Should brand drive my navigation menu?**
Depends on customer behaviour. Brand-aware shoppers (luxury, fashion, electronics) navigate by brand, brand-led navigation works. Commodity shoppers (groceries, DIY) navigate by category, brand is secondary. Audit your storefront analytics for brand-page click-through rates; if low, brands belong in filters not in navigation.

**Can I bulk-import brand assignments?**
Yes via BC API or admin CSV import. Format: SKU + brand-name. Most stores correct brand drift in batches of 500-2,000 products at a time; takes 30-90 minutes per batch.

***

### Tracked live in Vortex IQ Nerve Centre

*Products by Vendor* is one of hundreds of KPI pulses Vortex IQ tracks across BigCommerce and 70+ other ecommerce connectors. Nerve Centre runs the detection layer; Vortex Mind investigates the cause when something moves; Ask Viq lets you interrogate any number in plain English.

[Start for free](https://app.vortexiq.ai/login) or [book a demo](https://www.vortexiq.ai/contact-us) to see this metric running on your own data.
