BTO · Audit Trail & Evidence Index (AUD) · Worked example Greystone FM Group · 3 packs · 14 contracts · 42 sites · Q2 2026 (Months 1-3) · £184,200 variation value recovered
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Audit Trail & Evidence Index
BTO-GFM-AUD-012
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Audit Trail & Evidence Index

Full traceability record for Week 12 Commercial Control Kit™ outputs. Every deliverable traced from source documents through review gates to client acceptance.
Client
Greystone FM Group
Pack
Commercial Control Kit™
Period
Week 12 · w/c 17 Jun 2026
Items Covered
8 deliverables
Review Gates
16 gate events logged
Reference
BTO-GFM-AUD-012
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Section 01

Audit Summary

Week 12 CCK delivery cycle — 8 outputs produced, 16 review gate events, 6 accepted, 1 pending, 1 returned. Full source traceability maintained for every item.

Deliverables
8
CCK outputs this week
Gate Events
16
Internal QA + client review
Source Documents
34
Traced and indexed

Delivery cycle timeline

TimestampEventActor
Mon 17 Jun 08:00Client data upload received — 12 files across 4 contractsL. Osei (Greystone)
Mon 17 Jun 09:15Data validation complete — all files accepted, no corruptionsBuilt AI (auto)
Tue 17 Jun 10:00Processing commenced — CCK workflow initiatedM. Patel (Built AI)
Wed 18 Jun 16:00Internal QA review — 8 outputs reviewed, 8 passedS. Okoro (Built AI)
Thu 19 Jun 09:00Draft outputs uploaded to shared workspaceM. Patel (Built AI)
Fri 20 Jun 14:00Weekly Delivery Summary issued — 8 CCK items listedS. Okoro (Built AI)
Mon 23 JunClient review window — 6 accepted, 1 pending, 1 returnedK. Rhodes (Greystone)
Section 02

Deliverable Audit Trails

Each output with its source documents, review gate timestamps, reviewer, version history and acceptance status. This is the evidence that makes the service auditable.

W12-01
Accepted
Variation Narrative — VAR-031 · Meridian NHS Trust
Internal QA
Wed 18 Jun 16:12 · S. Okoro · Passed
Client Review
Mon 23 Jun 10:30 · K. Rhodes · Accepted
Version
V1.0 (no revisions)
Turnaround
1.3 days (data → draft)

Source Documents (5)

  • Meridian NHS Trust — works order WO-2026-0187 (PDF)
  • Site diary extract — 4–8 June 2026 (scanned PDF)
  • Subcontractor daywork sheet — electrical isolations (PDF)
  • Client instruction email — 3 June 2026 (MSG export)
  • Contract particulars — JCT MWD 2016 schedule (PDF)
W12-02
Accepted
Variation Narrative — VAR-032 · Westbridge Retail Park
Internal QA
Wed 18 Jun 16:24 · S. Okoro · Passed
Client Review
Mon 23 Jun 11:15 · K. Rhodes · Accepted
Version
V1.0 (no revisions)
Turnaround
1.5 days

Source Documents (4)

  • Westbridge — reactive maintenance call log, 10–14 June (XLSX)
  • Photographic evidence — water ingress, loading bay 3 (6 images)
  • Client verbal instruction — confirmed by email 11 June (MSG)
  • Subcontractor attendance record (PDF)
W12-03
Pending review
Variation Narrative — VAR-033 · Ashford DC
Internal QA
Wed 18 Jun 16:38 · S. Okoro · Passed
Client Review
Pending — K. Rhodes (due 27 Jun)
Version
V1.0
Turnaround
1.8 days

Source Documents (4)

  • Ashford DC — planned maintenance schedule deviation notice (PDF)
  • Site supervisor report — HVAC condenser replacement (PDF)
  • Supplier quotation — replacement unit (PDF, redacted pricing)
  • Client approval email for emergency procurement (MSG)
W12-04 / W12-05
Accepted
Change Event Log Updates — Portfolio-wide + Meridian NHS Trust
Internal QA
Fri 20 Jun 09:45 · S. Okoro · Passed
Client Review
Mon 23 Jun 14:00 · K. Rhodes · Accepted
Version
V12.0 (weekly increment)
Events Added
6 new events logged this week

Source Documents (8)

  • All source documents from W12-01, W12-02, W12-03 (cross-referenced)
  • Previous week's change event log V11.0 (baseline)
  • Contract manager weekly report — 14 June (PDF)
W12-06 / W12-07
Accepted (06) · Pending (07)
Notice Tracker Updates — Portfolio-wide + Riverside FM
Internal QA
Fri 20 Jun 10:30 · S. Okoro · Passed
Client Review
06: Accepted 23 Jun · 07: Pending (K. Rhodes)
Version
V12.0 (weekly increment)
Notices Tracked
3 new notices, 2 updated, 1 closed

Source Documents (5)

  • Contractor notice CN-2026-044 — Riverside FM (PDF)
  • Client response to CN-2026-041 — Meridian (email, MSG)
  • Previous notice tracker V11.0 (baseline)
  • Contract correspondence register extract (XLSX)
  • Meeting minutes — Riverside monthly review, 12 June (PDF)
W12-08
Returned
Evidence Bundle — VAR-028 · Langton Civic Centre
Internal QA
Thu 19 Jun 15:20 · S. Okoro · Passed (with note)
Client Review
Mon 23 Jun 16:00 · K. Rhodes · Returned
Return Reason
Missing site diary extract for 12 May 2026
Resolution
Diary requested from Langton site team — expected 23 Jun

Source Documents (6 of 7 required)

  • Langton Civic Centre — works order WO-2026-0162 (PDF)
  • Subcontractor attendance records, May 2026 (PDF)
  • Photographic evidence — before/after (12 images)
  • Material delivery note — 8 May 2026 (PDF)
  • Client instruction email — 2 May 2026 (MSG)
  • Variation submission VAR-028 V1.0 (PDF)
  • ⚠ MISSING: Site diary extract — 12 May 2026
Section 03

Assumptions Register

Assumptions made during output production that should be validated by the client's competent reviewer. Logged for traceability.

RefAssumptionOutputRisk if Invalid
AS-041Electrical isolation was conducted under a valid permit-to-work (referenced but not provided)W12-01 (VAR-031)Medium
AS-042Water ingress at Westbridge loading bay 3 is classified as a reactive maintenance event, not a latent defectW12-02 (VAR-032)Medium
AS-043Emergency procurement approval email constitutes a valid client instruction under the contractW12-03 (VAR-033)High
AS-044Contractor notice CN-2026-044 was served within the contractual notice periodW12-07 (Notice tracker)Medium
Reviewer action required. Assumptions AS-041 to AS-044 should be validated by the Commercial Director (K. Rhodes) during the client review process. If any assumption is invalid, the affected output should be returned for revision with corrected instructions.
Section 04

Compliance Statement

Confirmation of governance compliance for this delivery cycle.

ControlStatusEvidence
All source documents received via approved secure channelConfirmedUpload log: 12 files, Mon 17 Jun 08:00
Data validation completed before processingConfirmedValidation log: Mon 17 Jun 09:15, 0 errors
All outputs reviewed internally before handoverConfirmedQA log: 8 items reviewed, 8 passed
All outputs uploaded to shared workspace before Friday 14:00ConfirmedUpload timestamp: Fri 20 Jun 13:48
Source traceability maintained for every outputConfirmed34 source documents indexed in this register
Assumptions logged and flagged for client reviewConfirmed4 assumptions logged (AS-041 to AS-044)
No data processed outside approved workspaceConfirmedProcessing log: all activity within Plant Room
No unauthorised personnel accessed client dataConfirmedAccess log: M. Patel, S. Okoro only
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