SOP Guide for Pharma

API Manufacturing: SOP for Batch Number Generation and Control – V 2.0

API Manufacturing: SOP for Batch Number Generation and Control – V 2.0

Standard Operating Procedure for Batch Number Generation and Control in API Manufacturing

Department API Manufacturing
SOP No. SOP/API/184/2025
Supersedes SOP/API/184/2022
Page No. Page 1 of 14
Issue Date 14/04/2025
Effective Date 16/04/2025
Review Date 14/04/2026

1. Purpose

To define the procedure for the generation, assignment, and control of batch numbers for Active Pharmaceutical Ingredients (APIs), intermediates, and other GMP-manufactured materials to ensure traceability, proper documentation, and compliance with regulatory requirements.

2. Scope

This SOP applies to all GMP batches of APIs, intermediates, and pilot-scale products manufactured at the facility. It includes generation logic, recording, issuance, usage,

and tracking of batch numbers across all manufacturing and quality-related documents.

3. Responsibilities

  • QA Department: Responsible for generation, approval, and control of batch numbers. Maintains master logbook.
  • Production Department: Requests batch numbers and ensures proper documentation in all batch-related records.
  • QC Department: Verifies batch number in samples, CoA, and analytical records.

4. Accountability

The Head of QA is accountable for ensuring that the batch number generation and control system is implemented consistently and that batch traceability is maintained.

5. Procedure

5.1 Batch Number Format

  1. Batch numbers shall be generated using the following format: [Product Code]/[YYMM]/[Serial Number]
    Example: API01/2504/001 where:
    • API01 = Unique Product Code assigned by QA
    • 2504 = Year (2025) and Month (April)
    • 001 = Serial number starting from 001 for each month

5.2 Batch Number Request and Approval

  1. Production shall request batch numbers using the Batch Number Request Form (Annexure-1).
  2. QA shall verify:
    • Product name and code
    • Manufacturing schedule
    • Material planning confirmation
  3. QA shall assign batch numbers and record details in the Batch Number Issuance Register (Annexure-2).

5.3 Control of Batch Numbers

  1. Each batch number must be:
    • Unique and non-repetitive
    • Pre-approved before use
    • Linked to a specific manufacturing BMR
  2. No batch number shall be used without QA issuance and authorization.
  3. In case of batch cancellation, the number shall be marked as “Cancelled” with reason.

5.4 Batch Number Usage and Tracking

  1. Batch number must appear on:
    • Batch Manufacturing Record (BMR)
    • In-process sampling labels
    • QC test reports
    • Packing and labeling materials
    • Release documents and CoA
  2. Each step must ensure that the batch number is consistent across all associated documentation.

5.5 Electronic Batch Number Systems (if applicable)

  1. If batch numbers are managed in an ERP or LIMS:
    • Only authorized QA personnel shall have access rights for generation
    • System audit trail must be enabled
    • Electronic batch numbers must sync with physical BMR

5.6 Batch Number Review and Audit

  1. QA shall conduct quarterly audits of batch number issuance and traceability.
  2. Verify against production and release records.
  3. Any discrepancy must be investigated using the Batch Number Discrepancy Form (Annexure-3).

6. Abbreviations

  • API: Active Pharmaceutical Ingredient
  • BMR: Batch Manufacturing Record
  • QA: Quality Assurance
  • QC: Quality Control
  • LIMS: Laboratory Information Management System
  • ERP: Enterprise Resource Planning

7. Documents

  1. Batch Number Request Form (Annexure-1)
  2. Batch Number Issuance Register (Annexure-2)
  3. Batch Number Discrepancy Form (Annexure-3)

8. References

  • ICH Q7 – GMP for APIs
  • 21 CFR Part 211.105 – Equipment identification
  • EU GMP Part II – Section 5 and 6

9. SOP Version

Version: 2.0

10. Approval Section

Prepared By Checked By Approved By
Signature
Date
Name
Designation
Department

11. Annexures

Annexure-1: Batch Number Request Form

Product Name Product Code Requested By Date
API-X API01 Rajesh Kumar 10/04/2025

Annexure-2: Batch Number Issuance Register

Batch No. Product Code Issued By Issue Date Status
API01/2504/001 API01 Sunita Reddy 11/04/2025 Active

Annexure-3: Batch Number Discrepancy Form

Batch No. Discrepancy Description Investigation Summary Action Taken
API01/2504/004 Mismatch in CoA and BMR Typographical error Corrected and retrained staff

Revision History:

Revision Date Revision No. Details Reason Approved By
01/01/2022 1.0 Initial Version New SOP QA Head
14/04/2025 2.0 Included ERP/LIMS usage System integration QA Head
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