Supply chain management in manufacturing means connecting demand, materials, suppliers, capacity, inventory and delivery in one operational plan. The Croatian term upravljanje opskrbnim lancem describes the goal well, but the real work starts with specific questions: what must be ordered, when must it arrive, which work order will feel a delay first, and who decides on a substitute or a priority change.
The supply chain is not purchasing work alone. If sales changes a customer deadline, production must assess capacity, purchasing must assess material availability, the warehouse must confirm truly available stock, and the planner must see the effects on open work orders. When each function works from a separate spreadsheet, decisions arrive late or are made with incomplete information.
Current data from the Croatian Bureau of Statistics shows that manufacturing activity can shift quickly, while pressure from labour availability and external demand remains. In this environment, supply chain management is a shared early-warning system, not a separate purchasing report.
One plan does not mean one number that nobody may change. It means that everyone works from the same set of assumptions and that a change is visible to the people it affects.
Sales enters confirmed orders and an estimate of future demand. Production assesses available machines, people, tools and job sequencing. Purchasing tracks lead times, supplier confirmations and ordering constraints. The warehouse provides stock that is genuinely available for the plan, not just the total quantity recorded at a location.
It is useful to clearly distinguish between:
Adding these categories together without labels creates false precision. The planner can see demand but cannot see how much comes from a real order, how much from a forecast, and what can change without affecting the customer.
A sound weekly planning rhythm does not require long meetings. It requires a few shared decisions: which orders have priority, which material threatens the plan, where capacity becomes a bottleneck, and which deviation needs confirmation before it enters the production schedule.
A list of late items is not enough to show risk. One material may be delayed without affecting important orders. Another, even if inexpensive and low-volume, may stop an entire product or customer delivery.
For a critical material, the planner and purchasing team should be able to answer the following questions:
Only with this view can purchasing compare options. Expedited delivery, partial delivery, a second supplier or a specification change are not automatically the right answers. Their value depends on the order they protect, the time needed to qualify a substitute, and the implications for quality, cost and the agreed deadline.
This connection is especially important when manufacturing relies on several levels of components. A missing component may not be visible in the finished product, yet it can block a semi-finished item used in several orders. That is why product structure, lead times and open work orders need to be connected in the same operational view. Manufacturing work orders explains more about the discipline of work-order execution.
High total inventory does not mean that production is protected. Stock may be committed to another order, stored at another location, outside specification, or made up of items with no confirmed current need. At the same time, the shortage of one part can stop an entire work order.
Inventory management should therefore not be viewed only through total value or quantity. Inventory needs to be connected to product structure, the production plan, supplier lead times and reservations.
For an operational review, it is often enough to track a few clear questions:
This view does not remove uncertainty. It makes uncertainty visible early enough for the company to choose among available options instead of merely reacting to a delay that has already occurred.
A supplier rating can be useful, but on its own it does not answer what to do when a delivery is late. Supplier risk in manufacturing consists of specific constraints: whether an alternative source exists, how long its approval takes, what the minimum order quantity is, whether the material meets quality requirements, and when the last meaningful decision point occurs.
An alternative supplier is not necessarily a ready alternative. If changing the source requires quality verification, documentation changes or customer confirmation, that activity must be part of the plan. The same applies to substitute material. A technically possible substitute is not automatically permitted in every batch, for every customer or in every product.
For a small number of key items, it is useful to define the decision owner in advance. Purchasing can start contact with the supplier, but a technical substitution may require a decision from production, quality or development. Without clear ownership, the problem is simply passed between functions.
A more resilient supply chain does not emerge because a company creates another strategic document. It emerges when data is sufficiently organised, signals arrive early enough, and responsibilities are clear enough to address a disruption before it stops a delivery.
The National Industrial Development Plan links competitiveness with digital and green transition. The European Commission's Clean Industrial Deal also emphasises energy, circularity and industrial resilience. For an individual manufacturing company, these directions have operational value only when translated into better data, agreed alert thresholds, and scenarios for materials, capacity and suppliers.
There are real trade-offs. More safety stock can reduce exposure to shortages, but it ties up capital and can increase the risk of obsolescence. More suppliers can reduce dependence on a single source, but they increase the need for qualification and coordination. More frequent plan changes can respond to new demand, but excessive schedule instability makes work harder for the plant and purchasing team.
The aim is not to eliminate every risk. The aim is to know which risk the company accepts, who monitors it, and what the next decision is if the signal deteriorates.
A practical next step is to select three materials whose absence would stop an important product. For each material, connect the supplier, confirmed lead time, available inventory, possible substitute, affected orders, customer deadlines and decision owner.
This small model quickly reveals whether critical data is connected or whether an important link still exists only in someone's email, personal spreadsheet or experience. It also shows where definitions need to be aligned first, such as what available inventory, a confirmed date or a priority order mean in the company.
ORKA manufacturing can serve as the operational core of this view when sales, purchasing, warehousing and the plant use the same definitions of priorities and risks. Before making a broader system change, it is useful to check whether the team can explain from the same plan each week what is at risk, why, and who makes the next decision.