Why documentation is the backbone of GMP
In GMP, if it is not documented, it did not happen. Records are how a company proves that each batch was made to its approved process, tested to specification and released by the quality unit. Investigators read records before they read anything else.
FDA’s data integrity guidance sets the standard: records should be “attributable, legible, contemporaneously recorded, original or a true copy, and accurate (ALCOA)” (FDA, Data Integrity Q&A). Industry practice adds complete, consistent, enduring and available (ALCOA+).
For a data integrity checklist built on ALCOA+ and audit trails, see GMP Data Integrity Checklist: ALCOA+, Audit Trails and 2026 Expectations.
The core GMP records under 21 CFR 211
| Record | Requirement | Section |
|---|---|---|
| Master production and control records | Exist to “assure uniformity from batch to batch”; prepared by one person and independently checked by a second | 211.186 |
| Batch production and control records | Accurate copy of the master record, each significant step documented, with who performed and checked it | 211.188 |
| Laboratory records | Complete data from all tests, with calculations and reviewer sign-off | 211.194 |
| Complaint files | Product, strength, lot, complainant, nature of complaint and reply | 211.198 |
| Annual product review | Data for “evaluating, at least annually, the quality standards of each drug product” | 211.180(e) |
| Retention | Batch records kept “for at least 1 year after the expiration date of the batch” | 211.180(a) |
Source: eCFR, 21 CFR 211 Subpart J. Written procedures for production and process control are required by 211.100.
Good documentation practices (GDP)
- Record entries at the time of the activity, never from memory later
- Use permanent ink or validated electronic systems
- Correct errors with a single line, the reason, the date and initials; never obscure the original
- Sign and date every entry; no pre-signing or back-dating
- No blank spaces left for later completion
- Issue controlled forms and reconcile them
- Keep raw data, including printouts and electronic files, with the record
- Review records independently before release
What changed: the EU Chapter 4 draft
The European Commission consulted from July 7 to October 7, 2025 on a revised EU GMP Chapter 4 on documentation, alongside revised Annex 11 and new Annex 22. The revision aims to “highlight the importance of documentation in GMP compliance” and addresses new technologies and hybrid paper-electronic documentation (European Commission). Companies running hybrid systems should map where paper and electronic records meet, because that is where gaps appear.
The documentation errors FDA cites
Documentation sits behind several of the most cited drug observations in FY2025 (GMP Insiders):
| Citation | Documentation problem | FY2025 observations |
|---|---|---|
| 211.22(d) | Quality unit procedures not written or not followed | 243 |
| 211.192 | Investigations not documented or not thorough | 164 |
| 211.100(a) | Production procedures absent or inadequate | 162 |
| 211.68(b) | Computerized record controls inadequate | 87 |
The February 2026 warning letter to Nelson Co. gives a vivid example: a handwritten note recording an out-of-trend result was found among discarded materials, and FDA stated the deviation “was neither properly documented at the time of performance nor adequately investigated” (FDA warning letter). Uncontrolled notes, missing raw data and unrecorded deviations are classic data integrity red flags.
GMP documentation checklist
- Master records prepared, independently checked and approved
- Batch records capture every significant step with performer and checker
- Lab records include complete raw data and reviewer sign-off
- Deviations recorded at the time and investigated
- Controlled forms issued and reconciled; no uncontrolled notes
- Corrections follow GDP rules
- Retention periods meet 211.180 and are tracked
- Annual product reviews completed for each product
- Hybrid paper and electronic records mapped and controlled
- GDP training current for all staff who record GMP data
Review records faster, with evidence
Batch record and investigation review takes up a large share of QA time, and missing entries hide in long documents. AskDona reviews batch records, lab records and investigations against 21 CFR 211, your master records or your GDP procedures, flags missing entries, inconsistencies and unsupported conclusions, and cites the passage behind every finding.
Run a sample batch record review on one executed batch record. AskDona shows the evidence; your quality unit decides on release.
FAQ
What is GMP documentation? The procedures, specifications and records that show drugs are made and tested under control.
What does ALCOA mean? Attributable, legible, contemporaneously recorded, original or a true copy, and accurate (FDA).
How long must GMP batch records be kept? At least 1 year after the batch expiration date, under 21 CFR 211.180(a) (eCFR).
How should errors be corrected in GMP records? Single line through the error, with the correction, reason, date and initials, leaving the original readable.
What is changing in EU GMP documentation rules? A revised Chapter 4 addressing new technologies and hybrid documentation was consulted on in 2025 (European Commission).
References
All pages opened and checked by October 14, 2026.
| Source | Type | Date | Used for |
|---|---|---|---|
| FDA: Data Integrity Q&A | Regulator guidance | Dec 2018 | ALCOA |
| eCFR: 21 CFR 211 Subpart J | Regulation | Current | Record requirements |
| European Commission: EU GMP consultation | Regulator | Jul 7, 2025 | Chapter 4 draft |
| GMP Insiders: FY2025 observations | Trade analysis | Jan 5, 2026 | Citation counts |
| FDA warning letter: Nelson Co. | Regulator | Feb 12, 2026 | Documentation failure |