Planning October 2026 · 5 min read
- Different teams often hold different, equally reasonable numbers.
- The cost is stock in the wrong place and meetings spent reconciling.
- A shared plan moves the disagreement from 'what are the numbers' to 'what should we do'.
Ask four teams how much will sell next month and you'll often get four answers. Finance has a budget. Buying has an order plan. Marketing has a campaign calendar. Stores have a feeling. Each answer is reasonable on its own. Together they produce stock in the wrong place and meetings spent arguing about whose spreadsheet is correct.
Why it happens
Spreadsheets are copied, edited and emailed. Within a week there are several versions, and nobody is sure which is current. Even when the numbers agree on Monday, they drift by Friday. Add a few manual adjustments — 'I know this product is about to take off' — and each team's version carries its own invisible changes.
What it costs
- Time. Every planning meeting starts with reconciling numbers instead of making decisions.
- Stock. Buying orders for the number it has; stores expect the number they were told; the two don't meet.
- Trust. When people can't tell whose number is right, they stop using anyone's numbers and trust their gut.
- Speed. A change in one team's plan takes days to reach the others.
A small experiment
Choose one number — next month's expected sales for your top product group — and ask each team for theirs. Write them next to each other. The spread is the cost of not having a shared plan. Most companies are surprised by how wide it is.
What a shared plan changes
- One forecast everyone starts from, with changes recorded and explained.
- Budgets connected to orders, so finance sees the effect of a decision before it is made.
- Promotions visible to supply chain from the start.
- Fewer meetings about the numbers and more about the decisions.
What a shared plan does not do
A shared plan won't remove disagreement — it will move it to the right place. People can still disagree about what will happen. They stop disagreeing about what the numbers are. That is a much more productive argument to have.
Getting started
You don't need to unify everything at once. Begin with one product group and one forecast, make the changes visible, and let the other teams see it. Once people stop maintaining their own copies, the habit spreads on its own.
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