Supplier Constraints

Supplier constraints are limits on what a supplier can provide under stated conditions. Capacity, materials, delivery schedules, minimum order quantities, quality capability, and access to transport can restrict feasible replenishment. A forecast describes expected demand; it does not create supplier capacity.

Suppose expected demand is 100 units per week but the supplier can deliver at most 80 for six weeks. The 20-unit weekly gap cannot be removed merely by improving forecast accuracy. Options might involve existing stock, another approved source, changed promises, or reduced demand, each with its own limits.

Separate a measured operating limit from a contractual commitment or an unverified assumption. State the affected item, location, dates, quantities, and owner of the evidence. Recheck interacting constraints: a second supplier may share the same upstream material or shipping route.

Related reference: Oracle inventory planning and reporting documentation. Examples and calculations here are illustrative.