🏷️ SOP 26 — Batch Card / QR / NFC Tagging

SOP Name:         Batch Card / QR / NFC Tagging
Process Code:     BATCH_TAGGING_V1
Version:          V1
Owner:            Factory Supervisor
Applies To:       Factory Supervisor, Stacking Labour
Frequency:        Every production batch
Last Updated:     2026-06-25
Review Frequency: Monthly

1. Purpose

Give every batch a clear identity card so product, quantity, quality and curing status can be traced from mixing to dispatch.

2. Who Is Responsible

Factory Supervisor — creates and verifies the batch card.
Stacking labour — keeps the card with the batch at all times.

3. When To Use This SOP

At the start of every batch, and whenever the batch moves (stacking → curing → dispatch).

4. Visual Process Flow

flowchart TD
A[Batch created] --> B[Write batch card]
B --> C[Attach QR/NFC tag if available]
C --> D[Place card with batch island]
D --> E[Update status at each stage]
E --> F[Card retired at dispatch]

5. Batch Card Fields

Batch ID:
Date:
Product (MIB/CIB, 6/8-inch, solid):
Quantity (mini-stacks x 20):
Mix recipe code:
First-20 approval: PASS / HOLD / FAIL
Quality status: Approved / Hold / Reject
Curing start date:
Ready-for-dispatch date:
Dispatched? (date / vehicle):

6. Step-by-Step Visual SOP

Create the Batch ID at production planning (PROD_PLAN_V1).
Write the batch card with the fields above. [PHOTO: Batch card]
Attach a QR/NFC tag if available (links to the Supabase/Docmost batch record).
Place the card visibly in front of the batch island.
Update status at each stage: first-20, QC, curing start, ready date.
Keep the card with the batch through every move.
Retire/file the card at dispatch.

7. Do / Don't

✅ Do	❌ Don't
Keep one card per batch, always visible	Share one card across mixed batches
Update status at every stage	Leave dates/status blank
Match card quantity to actual stacks	Guess the quantity

8. Checklist

[ ] Batch ID matches production plan
[ ] All card fields filled
[ ] QR/NFC tag attached (if available)
[ ] Card placed with batch
[ ] Status updated at each stage
[ ] Card retired at dispatch

9. Records To Update

🔵 Batch card (physical)
🔵 Future: Supabase production_batches (linked via QR/NFC)

10. Escalation Rule

Inform Ram/Srinivasan if a batch loses its card / identity, or if card quantity does not match physical stock.

11. Common Mistakes

One card covering two mixed batches.
Status fields left blank, breaking traceability.
Card separated from the batch during a move.

12. Improvement Suggestion

If you find a better way to do this process, add a comment below or submit an improvement request in the SOP Improvement Register.

Automation Readiness

Telegram command: /batch
n8n workflow:     wf_batch_tagging_v1
Odoo object:      stock.lot
Approval role:    Factory Supervisor
Supabase table:   production_batches
Status:           Future automation