See resin shortages before they stall an order.

Available to this job is a separate question

A stock balance does not tell a planner whether material is available for a particular operation. Compare the job requirement with usable stock at the relevant location, existing reservations, and the date the material is needed. Quarantined stock, a different revision, or another job’s allocation can change the answer.

Define the shortage calculation with the buyer and planner. Use compatible units and account for issued quantities so material already consumed is not requested again. Keep projected receipts separate from stock physically available. A purchase order with an expected date can support planning, but it does not establish receipt, inspection release, or availability at the machine.

Illustrative sample: an unmet resin requirement

Fictional production order DEMO-3150 needs 120 kg of an approved HDPE grade on Thursday. The stock record shows 80 kg of that grade, and 60 kg are reserved to another order. A purchase order lists 100 kg more expected Friday. Under these sample rules, only 20 kg are available to DEMO-3150 before its need date.

The buyer confirms the incoming date and whether another approved source exists. The planner checks whether the operation can move without affecting downstream work. The answer should keep each assumption visible: usable quantity, reservations, unit conversion, and need date. It should not quietly reallocate another job’s material to close the apparent gap.

Trace the requirement through stock and purchasing

Map order ID, material ID and revision, required quantity, issued quantity, unit, warehouse, lot restrictions, reservation, need date, and expected receipt. A shared part number can still refer to material with different certification or inspection requirements. Where those constraints are not recorded, ask the team to confirm suitability.

Preserve the authority of each source. Purchasing may own the expected receipt date, inventory may own on-hand stock, and quality may own release from quarantine. Record the update time for each. If reservation data is unavailable, label availability as unconfirmed instead of presenting the full warehouse quantity as free stock.

• Planner reviews the jobs and operations affected.
• Buyer confirms supplier dates and permitted alternatives.
• Inventory or quality confirms usable quantity and release status.

Make purchasing changes a separate decision

A shortage review can produce a proposed supplier check, allocation review, or schedule question. Purchase creation, supplier changes, substitutions, and reservation transfers need explicit permissions and the shop’s approval process. Specify the reviewer and the exact fields an approved action would change before considering write access.

Validate the workflow against cycle-count discrepancies, late receipts, partially issued material, and jobs sharing one part. Show when a shortage depends on uncertain stock or an unconfirmed incoming date. Begin the scope conversation with one troublesome material dependency and the records the buyer uses to resolve it today.