Spreadsheet Failure ModeManual Workflow
Root Operational Bottleneck
Volume rebate targets live in a procurement workbook that is updated when someone has time, so earned credits are calculated after the year and often never claimed.
Control Hazard & Audit Exposure
Uncollected rebate credits of $120k sit unclaimed because purchases were never measured against the tier table in the period they shipped.
Deterministic Software ReplacementClient-Owned Architecture
Rebate Calculation Engine & Automated Credit Memo Claim
Rebate engine that accumulates qualifying purchases per vendor agreement and opens a credit-memo claim when a tier is earned.
Continuous Assertion Rule
Tier assertion: a rebate claim must equal qualifying purchases in the agreement window multiplied by the tier rate in force, or the credit memo cannot issue.