Harness Delay Alert Before the Line Stops

The problem

The warning arrives in time. It is read too late.

Critical alerts from JIT/JIS suppliers arrive by email or WhatsApp to specific people who can't watch the inbox in real time while running the live line. By the time they're read, sequencing decisions have already been made and break, causing line stoppages or out-of-sequence assembly.

• A wire harness is variant-specific: it goes into one exact VIN in the JIS sequence. When the truck carrying it is late, the variants that need it cannot be built.
• The supplier warns by email or WhatsApp, mid-morning, to the material planner or the logistics coordinator — who is on the floor running the live line, not reading the inbox.
• By the time someone reads it, the afternoon sequence is frozen, the bodies are already in paint and the only options left are a line stoppage or an out-of-sequence build.
• Each out-of-sequence unit then needs its own handling downstream, and the original warning sits in a personal inbox nobody else can see.

How it fits the IRIS system

Connect in chaotic-sources mode — a mailbox that reads itself.

Connect chaotic-sources mode: a dedicated mailbox is copied 24/7; the LLM extracts intent (delay), entities (supplier, part reference, time) and cross-checks the active MES sequence, returning the concrete resequencing action to the right role.

The channel is not redesigned and the supplier is not asked to change anything: a dedicated mailbox is copied, and Connect reads it around the clock. What arrives as an unformatted sentence leaves as a supplier, a part number, a delay and the VINs it affects, delivered to the role that can still do something about it.

See the full IRIS architecture →

Before and after

A harness delay read by a person versus a harness delay read by Connect

Aspect	Today	With iLEAN Connect
Time to read the supplier warning	1-3 hours, when someone checks	Seconds, 24/7
Variants affected	Worked out by hand against the sequence	Crossed with the active MES sequence
Who receives it	Whoever the supplier happened to email	The role that owns resequencing
Decision still available	Stop the line or build out of sequence	Resequence while there is room
Warnings sent by WhatsApp	Lost in a personal phone	Read like any other source
Trace of the decision	A memory and a forwarded email	Recorded with the alert that caused it

1-3 hours of human latency until someone reads the alert → seconds, with resequencing based on real-time data.

Impact estimate

Impact estimate — to be validated with your numbers.

The block below is an estimate to be validated against your plant's actual data. We put it forward so the committee has an order of magnitude; we refine it during the assessment.

• Estimated payback 3-7 months, depending on how often critical supplier alerts arrive.
• From 1-3 hours of human latency to seconds between the supplier's warning and planning's decision.
• Fewer out-of-sequence builds, each of which drags extra handling and a broken JIS sequence downstream.
• And every resequencing decision keeps the alert that triggered it, which is exactly what the materials team asks for when the same supplier fails again.

Estimated payback 3-7 months depending on critical-alert frequency. *Figure to be validated*. (Payback 3-7 months · from hours of latency to seconds)

And the fair question from the production manager

“What if it misunderstands a supplier's email and resequences for nothing?” — extracting supplier, part number and time from a delay warning, against your supplier master and the live sequence, is an anchored task where the best models drop below 1.5% error [1]. And Connect does not resequence on its own: it proposes the action, and the planner confirms it before anything changes in the MES.

^[1] OpenAI paper "Why Language Models Hallucinate", 2025 — on the reliability of AI in anchored tasks.