Engineering change cost analysis
Know what an engineering change will cost before you approve it.
Connect a BOM revision to inventory, work in progress, supplier commitments, and effectivity timing—then separate what is known, estimated, avoidable, and unresolved.
Current financial position
$83,200
Known
$41,600Estimated
$34,200Unresolved
$7,400Have approximate numbers?
Get a preliminary exposure range in five minutes.
No account, file upload, or confidential data required.
See how commitments become exposure.
Adjust a simplified revision scenario. DeltaLedger uses the same decision structure with transaction-level evidence in a real workspace.
Illustrative position
$41,724
Remaining net exposure after selected mitigations
Gross affected
$64,125
Before mitigation
Potentially avoidable
$22,401
Based on selections
Remaining exposure
$41,724
Decision position
Confidence composition
No unresolved amount modeled
Why the answer is difficult
The BOM tells you what changed. It does not tell you what is already committed.
The decision lives between systems and teams. DeltaLedger assembles the relevant evidence without asking you to replace the systems that produced it.
Engineering
BOM revision
ERP
Inventory + WIP
Purchasing
Open commitments
Suppliers
Cancellation truth
Describe the change
Compare current and proposed product structures.
Connect commitments
Match affected parts to inventory, WIP, and open orders.
Test the decision
Compare effectivity timing and mitigation options.
Approve with evidence
Preserve assumptions, responses, approvals, and outcomes.
Ask the decision—not a generic chatbot.
Luna explains the evidence DeltaLedger already calculated. It cannot create or alter a financial figure.
What is driving the exposure?
The largest driver is the open commitment for APX-8801B. Its cancellation position remains estimated until Northstar’s terms or written response are recorded.
Start without an integration project
One change. Two exports. One defensible decision.
Begin with a current and proposed BOM plus an open-PO export. Add inventory, WIP, supplier terms, and effectivity evidence as the decision requires it.
Upload
BOM and open-PO exports
Review
Mappings and missing evidence
Decide
Exposure, actions, and briefing
Questions buyers ask
Clear answers before you begin.
How is the cost of an engineering change calculated?+
A useful analysis connects the proposed BOM change to affected inventory, work in progress, open purchase commitments, supplier obligations, effectivity timing, and recovery or mitigation options. DeltaLedger keeps known, estimated, and unresolved amounts separate so the decision does not imply more certainty than the evidence supports.
What data is required to begin?+
A current and proposed BOM plus an open-purchase-order export are enough to start. Inventory, WIP, supplier terms, exchange rates, and effectivity evidence can be added when they are relevant to the change.
Does DeltaLedger replace our ERP or PLM?+
No. ERP and PLM systems remain the systems of record. DeltaLedger connects the evidence needed to evaluate the financial and operational consequences of the change.
Can we start with spreadsheets?+
Yes. The guided file-first workflow supports CSV and spreadsheet exports, remembers reviewed mappings, and makes the initial analysis possible without an integration project.
Does AI calculate or change the financial result?+
No. DeltaLedger calculates exposure deterministically. Evidence-Locked AI can explain, summarize, and challenge the recorded evidence, but it cannot create or alter a financial figure.
Can we use sanitized or historical data?+
Yes. A sanitized historical engineering change is a practical way to evaluate the workflow without introducing live operational risk.
Practical field guides
Continue exploring
A guided first analysis
Bring one engineering change. Leave with a decision.
Sanitized data is welcome. No ERP replacement, no lengthy implementation, and no obligation to continue.