How to Hire an S&OP Consultant

Hiring an S&OP consultant makes sense when the monthly sales and operations planning process exists on paper but does not change decisions: the meeting is attended, the slides are produced, and yet sales still blame supply, supply still blames sales, and finance builds its own forecast. A good consultant helps you design a process that fits your company, runs the first cycles with your team, and leaves a rhythm you can keep. This guide explains when an S&OP consultant is worth hiring, what the work covers, how to choose one, the questions to ask, the red flags, and a simple illustration of the cost of the meeting itself, with checked arithmetic. It is written by a demand planning and inventory consultancy, so weigh our view accordingly and use the checklist to compare providers. It is part of demand planning and inventory optimization, follows team structure for growing companies and the demand planning maturity assessment, and leads to inventory optimization consulting and the fractional demand planner guide. For the content of the process, see integrated business planning and financial reconciliation in S&OP. The finance side is in cash flow management.

What we do and do not do

Newtown Analytics is a demand planning and inventory optimization consultancy. We are not an accounting, audit, tax, legal or financing firm. We do not sell or resell software or a proprietary platform. S&OP/IBP Advisory is one of five areas we work in, alongside Inventory Health & Optimization, Demand Forecasting, Analytics & Planning Automation and Fractional Demand Planning Leadership. Our clients are consumer product companies with revenue between $20 million and $300 million.

Signs an S&OP consultant may help

• The meeting reviews the past and decides little.
• Sales, operations and finance bring different numbers.
• Nobody owns the consensus forecast.
• Supply constraints surface late, so the plan is changed in a rush.
• The financial forecast and the demand plan do not reconcile.
• The meeting has stopped happening or is attended by delegates without authority.
• You are growing, adding channels or products, and the informal approach no longer works.
• A new executive wants a process that works before approving a tool.

What the work covers

A typical engagement covers some or all of the following. First, a diagnosis of the current process, the people, the data and the decisions made. Second, a design of the cycle: the calendar, the steps (data and demand review, supply review, pre-meeting, executive meeting), the roles, the inputs and the outputs. Third, the creation of the standard pack, with a small set of measures and a decision list. Fourth, running the first cycles alongside your team, coaching the chair and the preparers. Fifth, linking the process to the financial plan, with a reconciliation of volumes, revenue, margin, inventory and cash. Sixth, documentation and handover. Optionally, advice on tools. See demand planning software.

What the meeting costs

It is worth being clear about the price of the process itself. Suppose the executive S&OP meeting has ten attendees, lasts two hours, and the average loaded cost of an attendee is $90 an hour (illustrative). Each meeting costs 10 × 2 × 90 = $1,800 of time, and over twelve meetings $21,600. Check: 10 × 2 = 20 hours, 20 × 90 = 1,800, and 1,800 × 12 = 21,600. Add the preparation by planners, analysts and finance, which is usually several times the meeting time. The cost is justified only if decisions improve. A single decision that avoids an excess purchase of $50,000 of stock, which at an 18 percent carrying cost costs $9,000 a year, or a stockout on a key account, pays back a meeting or two. A process that produces no decisions is expensive at any price. When you evaluate a consultant, ask how they will make the meeting produce decisions, and how you will know it does.

What to look for

Experience in S&OP and IBP, including running meetings, not only designing them. Ask what the hardest meeting they chaired was and why.

Understanding of your industry and the type of demand and supply you have.

Ability to work with executives and with planners, and to challenge both.

Facilitation skill. The chair's skill often determines the quality of the meeting.

Financial fluency, to link the plan to the P&L and cash, or to work well with your finance team.

Practical tool knowledge without being tied to a vendor.

A plan for handover, including coaching your internal lead.

References, ideally from companies of your size.

Questions to ask

How would you assess our current process in the first two weeks? What would the first three cycles look like? Who should chair, and how will you prepare them? What do you need from the executive team? What measures would you put in the pack? How will you handle a function that refuses to share its numbers? How do you handle a meeting that turns into a debate about the past? What will be different in six months if this works? What would make you recommend stopping?

Red flags

Be careful of a consultant who proposes a heavy, generic process without looking at your company, who insists on a tool before the process is defined, who talks only about templates and not decisions, who cannot describe how they have changed behavior in a client's meetings, or who does not plan to transfer the skill. Be careful of proposals that need executives to give a large amount of time without an agreed payoff, and of fees that are open-ended.

How the engagement is usually structured

A common structure is a short diagnosis, then a design and launch phase running the first cycles, followed by a lighter phase of coaching and review. Some companies prefer a retainer for monthly support, particularly when the internal lead is new. Define the outcomes, the cadence and the review points in writing. See how to hire a demand planning consultant for general guidance on scoping and comparing proposals.

Getting the most from it

Make sure an executive sponsor attends and holds others to the process. Appoint an internal lead who will own it after the consultant leaves. Provide data on time. Be open about problems. Keep the pack short and decision-focused. Review the measures each month. If you would like to discuss your situation, see our contact page.

Common mistakes

Treating S&OP as a reporting meeting instead of a decision meeting is the most common. Others include no executive sponsor, an unclear owner of the consensus forecast, a pack that is too long, no link to the financial plan, and bringing in a consultant to run the process indefinitely.

FAQs

When should I hire an S&OP consultant?

When the process exists but does not change decisions, functions bring conflicting numbers or growth has outgrown the informal approach.

What does an S&OP consultant do?

Diagnoses the current process, designs the cycle and pack, coaches the team through the first cycles and links the plan to finance.

How long does it take to set up S&OP?

It depends on size and starting point. Many companies need several monthly cycles before the process works smoothly.

Do I need software for S&OP?

Not at the start. A clear process works in spreadsheets. Tools can help later.