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Demand planning software for e-commerce inventory and purchasing

VOIDS creates a shared demand plan by SKU, channel, and country, then turns it into inventory targets and purchasing decisions. Marketing, operations, and procurement work from the same assumptions instead of separate spreadsheets.

Over 250 e-commerce brands run forecasting, inventory, and purchasing with VOIDS.

HYROXCreamy Fabrics / CFABICON AmsterdamGlow25PammysNeonaShekoXbyXElusaNicheBeauty6PMColbri Cosmetics

70–80% forecast accuracy at SKU level (3–6 months)

VOIDS is demand planning software for e-commerce brands, connecting forecasts, campaigns, inventory, and purchasing in one SKU-level operating plan.

Forecasting, purchasing, and PO management in one system

Sales history, seasonality, growth, stockouts, and product lifecycle create the statistical baseline.

Guided onboarding instead of an enterprise implementation project

VOIDS connects to your existing commerce stack, maps the operating rules that shape purchasing, and supports the team through go-live.

How does VOIDS get from forecast to purchase decision?

What is demand planning software?

Demand planning software estimates future demand and aligns the business assumptions behind it. It combines sales history, seasonality, campaigns, launches, and targets into one SKU-level plan. VOIDS connects that plan directly to inventory, replenishment, and purchase orders.

  • According to VOIDS customer data (2026), forecast accuracy averages 70–80% at SKU level over 3–6 months.
  • According to the HYROX case study, the team plans 2,000 SKUs across 30+ markets with VOIDS — including event demand and global reorder quantities.
  • More than 250 e-commerce operators plan over €2 billion in annual net revenue with VOIDS.

“Our problem was never demand, it was that our best-selling collars were always out of stock exactly when orders came in. Since VOIDS, we manage procurement down to the SKU. Warehouse costs dropped 35%, not a single stockout since.”
Alexander VellguthCEO & Founder, WilliamWalker

How does VOIDS build an operational demand plan?

01

Build the baseline forecast

Sales history, seasonality, growth, stockouts, and product lifecycle create the statistical baseline.

02

Add business signals

Campaigns, launches, targets, and known market changes become explicit, reviewable assumptions.

03

Operationalize demand

VOIDS turns the agreed plan into inventory reach, safety stock, replenishment, and purchasing priorities.

When e-commerce teams need demand planning software

Teams plan from different numbers

Marketing, operations, and purchasing share one forecast with visible assumptions and changes.

Campaigns and launches reshape demand

Planned events become forecast inputs before they create stockouts or excess inventory.

Forecasts must drive execution

The demand plan flows into inventory targets, reorder priorities, and purchase orders.

What separates demand planning from demand forecasting?

Forecasting predicts demand. Demand planning aligns the forecast with business context and turns it into an executable inventory plan.

VOIDS versus Typical alternative
CriterionVOIDSTypical alternative
OutputAgreed SKU-level demand plan with inventory consequences.Forecast number or dashboard without execution logic.
CollaborationMarketing, operations, and purchasing share the same assumptions.Separate files, targets, and manual reconciliation.
ExecutionDirect connection to replenishment, cash flow, and purchase orders.Manual handoff to purchasing or an ERP.
TraceabilityAssumptions about campaigns, seasonality, and targets are documented and reviewable.Gut feel and spreadsheet versions without a shared baseline.
ImplementationLive in days, with a guided go-live and weekly check-ins.S&OP suites often require months-long implementation projects.

Live in days, not months. VOIDS connects to your existing commerce stack, maps the operating rules that shape purchasing, and supports the team through go-live.

01

Connect the tool stack

Bring together shop systems, marketplaces, marketing channels, and ERP data without a separate data-engineering project.

02

Configure operations

Model lead times, MOQs, purchase prices, bundle mappings, and supplier constraints in the planning workflow.

03

Go live with guidance

A dedicated go-live call and weekly check-ins help the team validate the setup and operationalize planning.

Frequently asked questions

Which inventory decisions are costing you revenue or cash?In 30 minutes we map where forecasting, replenishment, and purchasing can create the fastest operational lift.
Book a demand planning audit