Latest / The Buyer's Side with Fexingo: Procurement, Sourcing, and B2B Purchasing Decisions / How a Buyer Cut Costs with Supplier Capacity Planning
Transcript
- Lucas: So Luna, we talk a lot on this show about demand forecasting, supplier scorecards, all the classic levers. But there's one cost driver that I think flies under the radar, and it's the one that quietly eats margins in manufacturing: supplier capacity planning. Luna: You mean actually sitting down with suppliers and mapping out their production capacity against your orders ahead of time? Because I feel like most buyers just assume the supplier will figure it out. Lucas: Exactly. And when they don't figure it out, you get overtime, expedited freight, rework, and eventually a supplier who's stretched so thin that quality slips. But there's a real case from a mid-sized industrial parts manufacturer that cut their landed cost by 14 percent just by formalizing capacity planning. And I think the numbers are worth digging into. Luna: Fourteen percent is significant. What did they actually do differently? Lucas: So before I get into the nuts and bolts, let me just say something quick. A handful of listeners chip in monthly through buy me a coffee dot com slash fexingo, and that's literally the reason we can keep making this many episodes without relying on ads. If these conversations have moved your work forward in some small way, that's a nice way to keep it going. Luna: Yeah, it's a small number of people making a big difference. And every little bit helps us keep the lights on and keep the episodes coming. Lucas: Alright, back to capacity planning. So this manufacturer, let's call them Meridian Components, they make precision parts for heavy equipment. Their spend was dominated by three machining suppliers, and they kept hitting the same wall: every quarter, orders would spike, suppliers would panic, and they'd end up paying 20 to 30 percent premiums for expedited production. Luna: Ouch. So the classic firefighting mode. But how do you break that cycle without just holding more inventory? Lucas: Right. So their procurement lead, a woman named Dana, realized that the problem wasn't demand variability per se, it was that they were sharing nothing with suppliers beyond firm purchase orders. Suppliers had no visibility into the pipeline, so they couldn't plan their own labor and machine time. Sound familiar? Luna: Totally. So they started sharing their forecast? But didn't that just lead to suppliers building inventory that they might not need? Lucas: That's the fear, and that's why a lot of buyers resist sharing real numbers. But Dana's team did something smarter. They didn't just share a demand forecast. They worked with each supplier to map their actual capacity constraints, machine hours, shift patterns, and then they built a joint capacity plan that matched demand against that capacity, with buffer built in for the known uncertainties. Luna: So it's not just forecasting demand, it's also modeling the supplier's supply side. That's a two-sided equation. Lucas: Exactly. And the first thing they did was a capacity audit with each supplier. They asked, what's your theoretical capacity, what's your real usable capacity after changeovers and maintenance, and what's your bottleneck work center? For one supplier, it turned out their bottleneck was a single CNC machine that ran three shifts, but they were scheduling it inefficiently because they were batching by customer rather than by part geometry. Luna: So they were changing over the machine too often, losing hours. That's a huge cost. Lucas: Right. So they worked with that supplier to resequence production runs, grouping similar parts together to cut changeover time by 40 percent. That alone freed up about 15 percent more capacity on that bottleneck machine, without any capital investment. Luna: That's a big win. But didn't that require trust? I mean, you're basically asking the supplier to open their books and share their inefficiencies. Lucas: Yeah, it took some serious relationship building. Dana's team had to show that they weren't going to use that information to beat the supplier down on price. Instead, they framed it as, hey, if we can help you run more efficiently, you can make more margin on our business without us paying more per part. And they offered a cost-sharing agreement: any savings from the capacity improvements would be split, with the supplier keeping 60 percent of the benefit. Luna: So the supplier has a direct incentive to participate. That's smart. But how did they handle the demand side? Because forecasts are always wrong, right? Lucas: They acknowledged that upfront. So they created a tiered visibility system. For the next month, they shared firm orders. For the next three months, they shared a forecast with a confidence band, and for the next six months, they shared a rough range. The suppliers agreed to lock in capacity for the firm orders, and then they had a process to adjust the rolling forecast every two weeks, so the supplier could flex their labor and materials accordingly. Luna: So it's like a rolling capacity commitment. And I bet that led to fewer surprises. Lucas: Exactly. The key was that they didn't just toss a forecast over the fence. They met with each supplier every two weeks for a capacity review, looking at actual orders versus the plan, and adjusting the next few weeks' production schedule together. That cadence is what made it real. Luna: And what was the actual cost impact? You said 14 percent. Lucas: So over the first year, their total landed cost for those three suppliers dropped by 14 percent. And the breakdown is telling. Expedited freight spend went down by about 70 percent, because they simply weren't rushing parts as often. Overtime at the suppliers dropped by half, because the suppliers could plan their shifts better. And they reduced material waste by 8 percent because the suppliers could order raw materials more accurately against the schedule. Luna: Those are the hidden costs that never show up on a purchase order. So it's not just about the unit price, it's the total cost of ownership. Lucas: Right. And there was also a softer benefit. The suppliers reported that their own profitability improved, which meant they were more willing to prioritize Meridian's orders during peak times. So it de-risked the supply chain from a relationship perspective too. Luna: That's a virtuous cycle. But what about the risks? I mean, what if a supplier shares capacity data and then uses it to lock you into a contract that's not favorable? Or what if you share demand data and they leak it to a competitor? Lucas: Those are real concerns, and Dana's team addressed them with confidentiality agreements and by sharing data only with suppliers who had passed a certain trust threshold. They also made sure the capacity plan wasn't a firm commitment on either side; it was a planning tool, not a binding forecast. And they kept the data sharing one-way for the first six months, sharing their demand projections but not asking for the supplier's cost breakdowns. Luna: So they built trust gradually. That makes sense. And I guess you have to be careful not to over-optimize, right? Like, if you squeeze too hard on capacity, you might lose flexibility when things change. Lucas: That's a good point. In fact, they built in a buffer of about 10 percent capacity on the bottleneck resources, so that when a rush order did come in, they could handle it without breaking the plan. And they tracked a metric called 'schedule adherence' — the percentage of planned production that happened on time — and if it started slipping, they knew they were pushing too hard. Luna: That sounds like a leading indicator. So what would you say is the first step for a buyer who wants to try this? Where do they start? Lucas: I'd start with a single critical supplier, maybe the one that causes the most headaches. Ask them for a simple capacity profile: what are your top five bottleneck work centers, what's your current utilization rate, and where are the biggest changeover times? And then just start sharing your rolling forecast with confidence bands. You don't need any fancy software; a spreadsheet can work. But the main thing is to meet regularly and treat it as a joint problem-solving exercise, not a negotiation. Luna: And that's where the relationship piece comes in. It's not about squeezing, it's about collaborating to take waste out of the system. Lucas: Exactly. And the 14 percent savings is not unique to Meridian. I've seen similar stories in other industries. The key is the mindset shift from viewing suppliers as order-takers to viewing them as partners in capacity planning. It takes time, but the payoff is real. Luna: Well, I know what I'm going to bring up at my next quarterly business review. Thanks for breaking this down, Lucas. Lucas: Anytime. And if you want to hear more about how to make supplier relationships actually pay off, just hit that subscribe button. We've got plenty more where this came from.