BigQuery plus Ward: demand forecasting for grocery retail
Grocery retailers on BigQuery run demand through Ward. 30,000+ SKUs over your stores, scans continuously around the clock.
The grocery demand stack on Google BigQuery
Demand Forecasting is a finding type Ward runs continuously. Ward combines historical patterns, weather data, local events, and economic signals to forecast demand at the store-SKU-day level.
Applied to Grocery & Supermarket, the surface area is 30,000+ SKUs across stores. Fresh availability, shrinkage, and promo effectiveness across hundreds of stores. Ward monitors perishable turn rates and flags waste before it happens.
The mechanism. Ward builds store-level demand models incorporating seasonality, weather forecasts, promotional calendars, local events, and macroeconomic indicators.
Getting the data in. Service account with BigQuery Data Viewer role. Ward runs read-only SQL queries on your schedule.
The short list
- Weather-driven adjustment
- Event and holiday modeling
- Automatic reorder point recalculation
- Store-SKU-day level precision
Chat
Ask anything. Ward routes to the right agent and returns cited answers.
I pulled Store 37’s last 28 days against the chain baseline. Two root causes, both compounding.
| Signal | Finding |
|---|---|
labor_efficiency | Rev/labor-hour −22% vs. cluster, staffing mismatch at 11a–1p peak |
inventory.fresh | Fresh fill 83%, backroom replenishment lag at 2–4p |
promo.lift | BOGO crackers cannibalized Brand Y by 28%, net category +6% |
Recommend: re-baseline Store 37 schedule against true peak, raise replen window to 1p, and review the BOGO before next cycle.
labor_scheduling…
Reporting
Pinned views built from saved data-lake queries. Every number re-derivable from its SQL.
| Model | Horizon | MAPE |
|---|---|---|
holt_winters | 4wk | 4.1% |
arima_sarimax | 13wk | 8.9% |
gbm_demand | 1wk | 2.1% |
bayes_hier | new store | 11.4% |
Sources
Connect external systems to the data lake.
| Name | Type | Last sync |
|---|---|---|
sap_pos_transactions | import | 2m ago |
sap_inventory_shrinkage | import | 2m ago |
sap_labor_scheduling | import | 14m ago |
relex_replenishment_plan | import | 1h ago |
blue_yonder_forecast_daily | import | 1h ago |
retail_fresh_waste_daily | import | 1h ago |
retail_promo_calendar | import | 1h ago |
Policies
Browse and manage Cedar access policies for your tenant.
| Policy ID | Effect | Resources |
|---|---|---|
merch-read-default | permit | Model::* |
lp-read-shrinkage | permit | Model::"inventory_shrinkage" |
vendor-blocked | forbid | Model::"labor_*" |
fresh-team-west | permit | Model::"fresh_waste_daily" |
Why Demand matters for Grocery retail
Perishable inventory creates an asymmetric cost function, over-ordering causes waste, under-ordering causes stockouts, both within a 48-72 hour window. Ward builds store-SKU-day models incorporating hyperlocal weather, community events, and holiday patterns to tighten the ordering window beyond what weekly aggregates can deliver.
What Ward has eyes on.
The demand model runs every morning, not on a reporting calendar. It flags the pattern, attributes the driver, and attaches a recommended move before the number reaches a review deck.
Every one of your stores gets its own baseline. Ward keeps a running read on fill rate, shrinkage %, fresh waste % against it and raises only the deviations that hold up. The two that show up most in grocery retail are fresh waste & spoilage and on-shelf availability gaps, and both are baseline problems before they are P&L problems.
Ward ingests BigQuery rather than replacing it. Any BigQuery dataset, gA4 event exports, ads data transfers come across on a read-only connection, get enriched with contextual data, and come back as insight cards. Your Data Platform is untouched.
At the metric level. Precision depends on perishable turn-rate modeling, weather-demand correlation by category, promotional lift isolation, and event demand pattern libraries. Ward measures forecast accuracy at WMAPE by department and flags when accuracy degrades below threshold.
Why this combination
is its own problem.
Google BigQuery is the system of record for most grocery operators of your size, which means the indicators Ward needs are already there. The gap is not data collection. It is that nobody has time to read any BigQuery dataset and gA4 event exports every morning across every store.
- 01 New-item launches use a category-average curve when in reality the lift profile differs by ethnic mix and pricing tier.
- 02 Promo lift gets baked into baseline forecasts, so the next non-promo week is over-ordered and produces shrink.
Benchmarks. Healthy grocery WMAPE runs 18-25% at the store-SKU-week grain and 28-40% at store-SKU-day. Fresh departments are noisier (35-55%). A 5-point WMAPE improvement on top-200 SKUs typically saves 0.5-1.2% of fresh COGS in shrink.
What the first 90 days
actually look like.
-
01
Week 1: read-only connection
Ward reads from Google BigQuery with read-only credentials and begins ingesting any BigQuery dataset and gA4 event exports. No config changes on your side. First insight cards arrive in two days.
-
02
Weeks 2 to 3: calibration
Baselines stabilize per store and per category. Ward stops flagging normal variance and starts flagging exceptions. This is the window where the false positive rate drops sharply.
-
03
Weeks 4 to 12: steady state
Ward delivers daily cards each day, each with the driver and a recommended move. Volume settles at a level a single person can read over coffee. The measure of success is not how many insight cards arrive, it is how many get acted on.
How Ward connects to Google BigQuery
Ward queries BigQuery using your existing datasets. GA4 exports, POS data, CRM exports. Ward reads it where it lives.
Setup: Service account with BigQuery Data Viewer role. Ward runs read-only SQL queries on your schedule.
Data Ward reads from BigQuery
Impact metrics with BigQuery
Data lake enrichment
Ward enriches BigQuery data with: Any BigQuery dataset, GA4 event exports, Weather & events, Demographics, Custom feeds
Grocery KPI impact
Frequently asked questions
Ward combines historical patterns, weather data, local events, and economic signals to forecast demand at the store-SKU-day level. For Grocery retail specifically, Ward monitors 30,000+ SKUs across your stores and delivers automated insight cards with root cause analysis and recommended actions.
Ward tracks Fill rate, Shrinkage %, Fresh waste %, Promo lift, Basket size at the store-category level. Ward builds store-level demand models incorporating seasonality, weather forecasts, promotional calendars, local events, and macroeconomic indicators.
Service account with BigQuery Data Viewer role. Ward runs read-only SQL queries on your schedule. Data points include: Any BigQuery dataset, GA4 event exports, Ads data transfers, Custom ETL outputs.
Yes. Ward reads BigQuery data and combines it with contextual signals (weather, events, demographics) to generate Grocery-specific insight cards. No custom development required.
Precision depends on perishable turn-rate modeling, weather-demand correlation by category, promotional lift isolation, and event demand pattern libraries. Ward measures forecast accuracy at WMAPE by department and flags when accuracy degrades below threshold.
Ward detects a hurricane tracking toward your Florida market five days out and maps the predictable surge sequence: water and batteries first, then canned goods and bread, then cleanup supplies post-event. Ward issues phased demand adjustment cards store by store based on distance from projected landfall, avoiding both panic stockouts and post-storm overstock write-offs.
First insight cards arrive within 48 hours of data connection. Ward needs approximately 2 weeks to establish stable baselines for your specific operation.
No. Ward sits on top of your existing stack. It is the proactive intelligence layer that watches your data continuously and delivers insight cards, so your team acts on findings instead of hunting for them.
Related solutions
See what Grocery demand problems Ward catches.
Root causes, not just alerts. See it on your data.
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