Order release: the gate between a plan and work actually starting

An early release does not make anything finish sooner

Pushing an order onto the floor before it can progress converts planned material into work in progress, occupies floor space, and lengthens every queue the order joins. Nothing completes faster, because the constrained resource still processes the same amount per hour. What does happen is that priority becomes invisible: with a large pool of open jobs, no supervisor can tell which one matters, and the sequence gets decided by whoever is standing nearest. Restricting release keeps the choice where the information is, in planning, rather than delegating it by default to the busiest person on the floor.

What has to be true before the order goes out

A release check is short and non-negotiable: the material is physically available and reserved, not merely showing on hand; the tooling, fixtures and gauges exist and are serviceable; the drawing and process documentation are at the current revision; the work centre has capacity in the window; and any customer or quality clearance the job needs is in place. Orders released missing one of these become the part-finished jobs that clutter every aisle. The check costs a planner a few minutes and prevents a job that will sit blocked for a week while consuming material somebody else needed.

Holding orders in a pre-release pool

Workload control keeps a pool of approved but unreleased orders and lets work onto the floor only as work leaves it, so the quantity in progress stays inside a chosen band. The pool is where resequencing is cheap: an order can be reprioritised, delayed or cancelled without unpicking material issues and part-completed operations. It also gives an honest lead-time picture, because the wait before release is visible rather than buried inside a queue at a machine. The discipline needed is resisting pressure to release early to make a plant look busy, which is exactly what the pool is for.

Whose signature the release carries

Release authority should sit with one named role — usually production control — and be exercised against the checklist rather than against pressure. Where sales, operations and materials each release orders directly, the gate does not exist. Emergency releases will still happen; the rule is that they are logged with the reason and the checklist item that was waived. Reviewing waived items is unusually revealing, because a plant that repeatedly releases without confirmed material has a supply problem it has learned to absorb on the shop floor instead of naming.

How a broken release gate announces itself

The symptoms are consistent: work in progress rising while output does not, part-finished jobs parked in aisles waiting for a missing component, cannibalisation of one order's material for another, and expediting as the normal way to get anything through. Lead times lengthen and become unpredictable, so sales quotes longer, so orders are released earlier still. Measuring the number of open orders on the floor against average completions per week gives a quick estimate of how long a released job waits, and that figure is usually the argument that changes the release policy.

Frequently asked questions

Will holding orders back make us miss delivery dates?

Not if the pool is sequenced by date. Orders wait in a controlled queue instead of a chaotic one, and total time from release to completion falls because floor queues are shorter. The risk is real only where the pool is managed badly — orders forgotten, released too late, or held while a work centre idles. Watch for starvation at the constraint: if the bottleneck ever waits for work, release sooner. That single rule keeps workload control from becoming self-defeating.

Should material shortages block release outright?

Block release when the missing item is needed early in the route or cannot arrive before it is required. Allow a controlled release when the shortage affects a late operation and confirmed supply lands in time, but flag the job so nobody assumes it can be completed. What destroys credibility is releasing shortage jobs routinely and hoping, because the floor learns that a released order means nothing and starts making its own judgements about what is genuinely runnable.

How many open orders should be on the floor at once?

Enough to keep the constraint fed with a protective buffer, and no more. There is no universal figure; derive it by watching how output responds as the open-order count changes. Most plants find output flat above a certain level while lead time keeps climbing, which identifies the ceiling empirically. Set the limit slightly above the point where output stopped improving, then hold it and observe delivery performance over a few months before adjusting.