The OEM sends a new schedule every week. The plant is still running last week's plan.
Automotive OEMs send rolling production schedules to their Tier 1 and Tier 2 suppliers on a weekly — sometimes daily — cadence. Each revision changes quantities, sequences, and delivery windows across a 4–13 week horizon. Translating each revision into an updated production plan, procurement schedule, and dispatch sequence requires a planning team to manually reconcile the new schedule against current work orders, open purchase orders, and available capacity.
By the time the reconciliation is complete — typically 1–2 days after the schedule arrives — the OEM has already factored the supplier's response into their own assembly schedule. If the supplier's plan has not kept pace, the mismatch surfaces as a line-stop at the OEM plant — one of the most commercially damaging outcomes in the automotive supply chain.
An OEM schedule revision is a structured set of changes to a known plan — every delta is computable the moment the file arrives. HublerX ingests OEM schedules via EDI, portal scrape, or email attachment, diffs the new schedule against the current production plan, and propagates every change — quantity, sequence, delivery window — into open work orders, purchase requisitions, and dispatch plans automatically. Where a revision creates a capacity conflict or material gap, HublerX surfaces it with the resolution options before the planning meeting — not during it.
Live workflow view
The step-by-step sequence
- 1
OEM schedule received and ingested
HublerX monitors the EDI feed, OEM supplier portal, or email inbox for new schedule releases. When a revision arrives — in EDIFACT, ANSI X12, Excel, or PDF — it is parsed and loaded into HublerX automatically. No manual download or import required.
On schedule receipt · real time - 2
Revision diffed against current production plan
HublerX compares the new OEM schedule against the current open work orders line by line — identifying quantity changes, sequence shifts, new part numbers, and delivery window revisions. The delta is rendered as a structured change list, not a raw file comparison.
Immediately after ingestion - 3
Production plan updated automatically
For changes within available capacity and material coverage, HublerX updates the production plan directly — revising work order quantities, sequences, and due dates in the ERP without planner intervention. Only exceptions requiring human judgement are flagged for review.
On delta confirmation - 4
Material impact cascaded to procurement
Quantity and timing changes in the OEM schedule flow through to open purchase requisitions and POs automatically. Where a revision increases demand beyond current PO coverage, HublerX generates a procurement alert with the quantity, part number, and required delivery date for the buyer to action.
Simultaneously with plan update - 5
Capacity conflicts and exceptions surfaced
Where a schedule revision creates a capacity conflict — volume increase beyond line capacity, sequence change requiring a changeover — HublerX flags it to the planning manager with the specific constraint, the affected work orders, and the available resolution options. The planner acts on a recommendation, not a blank page.
When constraint detected - 6
Dispatch sequence confirmed to OEM
Once the production plan is aligned to the revised OEM schedule, HublerX generates the dispatch sequence confirmation — including JIT delivery windows, sequenced part numbers, and truck loading instructions — and sends it back to the OEM via EDI or portal upload.
On plan confirmation
Results are directional. Outcomes vary by OEM EDI format, ERP configuration, and production complexity.
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