B2B sourcing control · monthly review

Supplier allocation review calendar

Use this calendar after a supplier capacity reallocation decision has started. It keeps monthly split changes, pilot results, evidence gates and rollback decisions visible so “temporary” volume shifts do not become unmanaged exposure.

When to run it

  • Any supplier receives more than 10% extra monthly volume.
  • A restricted supplier is losing volume but still carries open orders.
  • A backup supplier passed pilot but has not yet proven repeat stability.
  • Management needs a clean record of why allocation changed.

Calendar output

Each review should end with one dated decision: keep split, increase staged transfer, pause transfer, rollback to prior split, or escalate to exit / replacement planning.

keepincreasepauserollbackescalate

Copy-ready monthly review calendar

TimingReview questionEvidence to captureDecision gate
Day 1–3Was the new allocation communicated and frozen?PO split, SKU list, spec/version baseline, owner listNo production start if scope is unclear.
Week 1Can the receiving supplier prove near-term capacity?Material booking, line plan, staff/shift proof, bottleneck notesHold increase if capacity proof is weak.
Week 2Is pilot production matching approved standard?Sample match, in-process QC, defect photos, correction logPause transfer on critical defect or unclear remedy.
Week 3Are shipment and document controls still clean?Packing list, carton marks, inspection status, invoice consistencyNo balance payment before document match.
Week 4Should next month’s allocation change?On-time result, defect rate, claim status, supplier response qualityChoose keep, increase, pause, rollback or escalate.

Review roles

  • Buyer owner: maintains split, dates and supplier commitments.
  • Quality owner: confirms sample, inspection and defect evidence.
  • Logistics / document owner: checks shipment files and release status.
  • Manager: approves any increase above the pilot threshold.

Rollback triggers

  • Late production milestone without credible recovery proof.
  • Critical defect, repeated minor defect, or unapproved material substitution.
  • Payment-account mismatch, invoice inconsistency, or missing shipment document.
  • Receiving supplier asks for more volume but cannot close prior evidence gaps.

Recommended record format

Keep one line per supplier and month: supplier name, previous share, proposed share, pilot result, open evidence gaps, payment exposure, next review date, final decision and rollback trigger. Link the line back to the supplier capacity reallocation matrix and portfolio heatmap so the allocation history remains explainable.