Decision guide

Demand planning software vs spreadsheets

The right answer depends less on forecast math than on data scale, exception volume, and whether recommendations must become governed actions.

Spreadsheets are flexible for early models and one-off analysis. Dedicated software becomes more valuable when planning runs across many SKU-location combinations, open purchases and transfers must be considered, exceptions need owners, and approved recommendations must reach an ERP.

01

Compare by criterion

CriterionDemand planning softwareSpreadsheetsBuyer question
Planning grain

Persistent SKU-location records

Flexible but manually maintained

How many SKU-location combinations change each cycle?
Open supply

Connected purchase and transfer context

Requires refresh and joins

Can planners see what is already on the way?
Exception workflow

Owner, status, reason, approval

Usually comments, colors, and side messages

How are decisions assigned and audited?
ERP execution

Approved writeback by scope

Manual upload or rekeying

Who converts the plan into transactions?

Demand planning software

Choose this when

  • Planning spans many products and locations.
  • Open supply and transfers materially change recommendations.
  • Recommendations need controlled ERP execution.

Spreadsheets

Choose this when

  • The model is exploratory or still changing weekly.
  • A small SKU set has one clear owner.
  • The output is analysis rather than recurring execution.

02

How to run a fair test

  1. Select one category and representative locations.
  2. Compare setup time, refresh time, exceptions, and approved actions.
  3. Reconcile every recommendation to open supply and final ERP action.

See the product in the context of this decision

Explore Soberan Demand Planning →

Frequently asked questions

Are spreadsheets bad for demand planning?

No. They are useful for exploration and small models. The risk grows with data scale, repeated refreshes, and operational handoffs.

What should a pilot measure?

Measure data preparation, planner review time, exception volume, recommendation adoption, and reconciliation to ERP actions.