Sales and operations planning: the monthly decision cycle

The cycle in sequence

A conventional cycle moves through product and portfolio review, demand review, supply review, a financial reconciliation and an executive session. Each step narrows the disagreement: portfolio settles what will exist, demand settles what is expected, supply settles what is feasible, finance settles whether the result meets the business plan, and the executive step resolves whatever is left. Steps that only report status, rather than close a question, lengthen the calendar without improving the plan.

One set of numbers, valued two ways

The reconciliation is where most cycles are won or lost. The volume plan and the financial plan must be the same plan expressed in different units; if operations schedules to one number while finance forecasts another, the process has produced two disconnected artefacts. Valuing the agreed volumes at current price and cost assumptions exposes the gap to budget while there is still horizon left to act on it.

Escalation is the output, not consensus

A healthy executive session mostly considers exceptions: demand that cannot be supplied, capacity that requires investment, a customer commitment that would breach an allocation rule, a supplier position that has become fragile. If every item arrives already agreed, the earlier steps are either working extremely well or quietly suppressing conflict. Tracking how many decisions were actually taken, and how many were deferred, is a better health measure than attendance.

Horizon and granularity

The cycle is aimed at the horizon where decisions are still open — beyond the frozen schedule, within the range where capacity, sourcing and commercial commitments can still change. Detail is kept at family or category level, because item-level argument crowds out the strategic questions the session exists to settle. Execution issues inside the frozen window belong to a separate, shorter operational review.

Symptoms of a cycle that has stopped working

Look for a plan that is rewritten in the week after it was signed, exception lists that repeat unchanged from cycle to cycle, attendance drifting to deputies without decision authority, and a growing habit of resolving shortages by direct escalation outside the process. Each is evidence that the meeting has become a report. The fix is usually narrower scope and firmer decision rights, not a longer pack.

Frequently asked questions

How often should the cycle run?

Frequently enough that decisions are still open when the cycle reaches them, and rarely enough that each pass can complete properly. Monthly suits most manufacturers and distributors; businesses with very short product lives or volatile supply often add a lighter mid-cycle review rather than compressing the whole thing.

Does S&OP need dedicated software?

Not to start. The binding constraints are usually agreed data definitions, a single owner per step and executives who attend with authority. Tooling helps once the process is stable, because it removes the reconciliation effort that otherwise consumes the cycle.

What distinguishes integrated business planning from S&OP?

Mainly scope and seniority. Integrated business planning extends the same rhythm to cover portfolio, strategic initiatives and full financial outcomes, so it takes a wider set of decisions. The underlying discipline of reconciling demand, supply and money on a fixed cadence is common to both.