> ## 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. # Listings Drifting from BC Source-of-Truth, Alibaba > Listings Drifting from BC Source-of-Truth for Alibaba stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it. **Card class:** [Hero](/nerve-centre/overview#card-classes-explained) • **Category:** [Cross-Channel: Revenue at Risk](/nerve-centre/connectors#connectors-by-type) ## At a glance > **Listings Drifting from BC Source-of-Truth** is a Cross-Channel: Revenue at Risk metric that counts B2B Alibaba listings whose title or specifications have drifted from the BigCommerce retail store, which is treated as the source of truth. When the two diverge, a B2B buyer who verifies a supplier on the direct site sees a mismatch, and that erodes confidence on exactly the high-intent buyers you most want. The card pairs with the other Cross-Channel: Revenue at Risk siblings below, and with listing-quality and catalogue cards, to keep your Alibaba storefront aligned to a single trusted catalogue. | | | | --------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **What it counts** | The number of active Alibaba B2B listings whose title or key specifications no longer match the corresponding product on the BigCommerce store, evaluated over the time window. | | **Sample type** | Backend API data from Alibaba, refreshed on the standard data refresh. | | **Why it matters** | BigCommerce is the catalogue source of truth. B2B buyers cross-check suppliers against the brand's direct site before placing large MOQ orders. Drift between the two surfaces creates doubt, stalls inquiries, and puts revenue at risk. | | **Reading the value** | Read as a count of drifting SKUs. Any non-zero value is worth a look; a rising count means catalogue sync is falling behind. Drill into the listed SKUs to see which fields drifted. | | **Currency** | number | | **Time window** | `30D` | | **Alert trigger** | `>10 SKUs drifting` | | **Sentiment key** | `ali_xc_catalogue_drift_vs_bc` | | **Roles** | owner, marketing, operations | ## Calculation This is a cross-channel card: it joins your Alibaba B2B listings against the matching products on the BigCommerce store by their shared identifier, then compares title and key specification fields between the two. A listing counts as drifting when those fields diverge from the BigCommerce record. The card reports how many SKUs are currently out of alignment over the time window. Because BigCommerce is the source of truth, the BC value is always treated as correct and Alibaba is the side flagged for review. See the worked example below for a typical reading. ## Worked example *A representative reading of **Listings Drifting from BC Source-of-Truth** for a typical Alibaba supplier.* On 12 Mar 26 a supplier runs 420 active B2B listings synced from a BigCommerce catalogue. The card reads 14 drifting SKUs, above the alert line of 10. Drilling in shows that 9 listings still carry last season's product titles and 5 list an older pack-size spec that BigCommerce updated a week ago. To a B2B buyer comparing the Alibaba listing against the brand's direct site, those nine titles look like a different product, which stalls inquiries on otherwise high-intent SKUs. Vortex Mind traces the drift to a catalogue update on BigCommerce that did not propagate to the Alibaba listings, and Ask Viq lets the operations lead pull the exact SKU list to push corrected titles and specs. ## Sibling cards merchants should reference together | Card | Why merchants reach for it | | -------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- | | [`listings-failing-feedonomics-feed-validation`](/nerve-centre/kpi-cards/alibaba/listings-failing-feedonomics-feed-validation) | Cross-channel sibling: drift often shows up as feed validation failures too. | | [`active-alibaba-listings-for-oos-skus-on-bc`](/nerve-centre/kpi-cards/alibaba/active-alibaba-listings-for-oos-skus-on-bc) | Cross-channel sibling: another way Alibaba and BC fall out of sync. | | [`b2b-vs-retail-pricing-coherence-vs-aliexpress`](/nerve-centre/kpi-cards/alibaba/b2b-vs-retail-pricing-coherence-vs-aliexpress) | Cross-channel sibling: price drift across sister channels. | | [`listing-quality-score`](/nerve-centre/kpi-cards/alibaba/listing-quality-score) | Drifting titles and specs drag down listing quality. | | [`required-attribute-completeness`](/nerve-centre/kpi-cards/alibaba/required-attribute-completeness) | Spec drift often coincides with missing or stale attributes. | ## Reconciling against Alibaba Seller dashboard **Where to look in Alibaba's own dashboard:** Alibaba shows only its own side of this comparison. In your supplier workbench, open Product Management to inspect the live title and specifications for each listing. Alibaba has no view of your BigCommerce catalogue, so to reconcile drift you compare each flagged Alibaba listing against the same product in your BigCommerce admin. The card does that join for you; the workbench is where you confirm and correct the Alibaba side. **Why the Vortex IQ value may legitimately differ:** | Reason | Direction | What to do | | ---------------------------------------------------------------------------------------------------------------------------------- | --------- | ------------------------------------------------------- | | **Period boundary.** Vortex IQ evaluates over a 30-day window; a very recent BigCommerce edit may not yet be reflected on Alibaba. | Variable | Match the comparison dates and allow for sync lag. | | **Time zone.** Update timestamps differ between the account time zone and your merchant reporting time zone. | Marginal | Confirm the time zone match when checking recent edits. | | **Filter scope.** Profile-level filters (which catalogue or product set is in scope) may narrow which SKUs are compared. | Variable | Match the catalogue and filter settings on both sides. | **Cross-connector reconciliation:** because this card spans Alibaba and BigCommerce, reconcile it against your BigCommerce catalogue rather than Alibaba alone. For divergence investigations across channels, use Vortex Mind. ## Known limitations / merchant FAQs **Q: How often does Listings Drifting from BC Source-of-Truth update?** The card refreshes on the standard data refresh (typically every 30-60 minutes for live integrations). Because it joins two channels, allow for normal sync lag after a BigCommerce edit before treating a SKU as drifted. **Q: Why does my Alibaba dashboard show a different number?** Alibaba's workbench only shows its own listings; it cannot see your BigCommerce catalogue, so it has no equivalent drift count. Differences usually come from comparison dates, time-zone alignment of recent edits, and which catalogue is in scope. Reconcile against the BigCommerce admin, not Alibaba alone. **Q: How does this relate to the other cross-channel cards?** Drift often travels with feed rejections and out-of-stock mismatches, so read it next to Listings Failing Feedonomics Feed Validation and Active Alibaba Listings for OOS SKUs on BC. Together they show how far your Alibaba storefront has slipped from the source of truth. **Q: Can I customise the alert threshold?** Yes, the alert fires above 10 drifting SKUs by default, and that threshold is configurable per profile in the Sensitivity tab. Tighten it if your catalogue must stay in lockstep, or loosen it if some seasonal lag is acceptable. *** ### Tracked live in Vortex IQ Nerve Centre *Listings Drifting from BC Source-of-Truth* is one of hundreds of KPI pulses Vortex IQ tracks across Alibaba 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.