Good Documentation Practices (GDocP) in Pharma: Rules, ALCOA+ & Examples

 

Published by: Pharma Quality System Editorial Team • Editorial basis: WHO GMP, FDA CGMP/data-integrity guidance, and ICH Q7 documentation principles

GMP • DOCUMENTATION • DATA INTEGRITY

Good Documentation Practices are the everyday rules that make pharmaceutical records reliable, traceable, reviewable, and inspection-ready. A strong documentation system shows what was done, who did it, when it was done, and whether the activity followed approved procedures.

Quick answer

Good Documentation Practices (GDocP) are the controls used to create, review, correct, approve, issue, retain, and retrieve pharmaceutical records so that activities are documented accurately and can be reconstructed. GDocP supports GMP and data integrity and should be applied to both paper and electronic records.

Terminology note:
In this article, GDocP means Good Documentation Practices. We avoid using only “GDP” because GDP is also widely used for Good Distribution Practice.

Table of Contents

1. What Are Good Documentation Practices?
2. Why GDocP Matters in Pharma
3. Core GDocP Rules
4. GDocP and ALCOA+
5. How to Make GMP Entries Correctly
6. How to Correct a GMP Record
7. Controlled Documents & Document Lifecycle
8. Practical Examples
9. Common Documentation Mistakes
10. Electronic Documentation
11. Interview Knowledge
12. FAQ

 What Are Good Documentation Practices in Pharma?

Good Documentation Practices are the principles and controls used to ensure that pharmaceutical documents and records are accurate, complete, legible, traceable, controlled, and available. Documentation is not separate from the work itself: in a regulated environment, the record is part of the evidence that the activity was performed correctly.

WHO GMP emphasizes that documents should be designed, prepared, reviewed, distributed, authorized, periodically reviewed, and kept up to date. Records should be completed when actions are taken so that significant activities remain traceable. FDA CGMP requirements similarly expect written procedures to be established and followed and records to be complete and adequately reviewed.

Simple rule:
If an activity is important enough to affect product quality, patient safety, or a GMP decision, the documentation should allow a qualified reviewer to understand and reconstruct what happened.

Why Good Documentation Practices Matter

Pharmaceutical quality systems depend on reliable records. Batch release, laboratory testing, deviations, CAPA, validation, cleaning, equipment use, stability, complaints, change control, and training all depend on documented evidence.

Strong GDocP helps organizations:

• Demonstrate that approved procedures were followed.
• Trace who performed an activity and when.
• Reconstruct manufacturing and laboratory events.
• Investigate deviations and OOS results using reliable evidence.
• Prevent use of obsolete or uncontrolled documents.
• Support batch disposition and Quality Unit decisions.
• Maintain data integrity throughout the record lifecycle.
• Provide inspection-ready evidence to regulators.

Core Good Documentation Practice Rules

Rule	What It Means
1. Record at the time of activity	Do not rely on memory or recreate records later.
2. Write clearly and permanently	Entries should remain legible and durable throughout retention.
3. Use approved documents	Only current, authorized SOPs, forms, worksheets, and records should be used.
4. Complete all required fields	Blank fields should not create ambiguity about whether an activity was missed.
5. Attribute entries	The record should identify the person responsible for the entry or action.
6. Do not obscure original information	Corrections should preserve the original entry and maintain traceability.
7. Explain significant corrections	When required by procedure, document the reason for the change.
8. Control copies and revisions	Prevent unintended use of obsolete or uncontrolled documents.
9. Review records adequately	A reviewer should evaluate completeness, accuracy, compliance, and relevant supporting data.
10. Retain and retrieve records	Records should remain protected, readable, and available for the required period.

Good Documentation Practices and ALCOA+

GDocP and data integrity are closely connected. WHO describes trustworthy pharmaceutical data using the ALCOA+ characteristics: Attributable, Legible, Contemporaneous, Original or a true copy, Accurate, Complete, Consistent, Enduring, and Available.

A documentation practice may look minor but still affect data integrity. For example, recording results hours later can violate contemporaneous recording; shared initials or logins can weaken attribution; destroying a draft containing the original observation can affect originality and completeness.

For a deeper explanation, read our Data Integrity in Pharmaceutical Industry: ALCOA+ Principles, FDA Guidance & Examples.

How to Make GMP Entries Correctly

A good entry should be made in a way that preserves traceability and meaning. Depending on the organization's approved procedures and record type, expected practices commonly include:

• Enter information directly into the approved record.
• Record the entry when the activity occurs.
• Use permanent, legible entries for paper records.
• Use the required date/time format consistently.
• Sign or initial entries where required.
• Use actual values rather than vague statements when a measured value is required.
• Do not pre-sign or pre-date records.
• Do not use unofficial notes as a substitute for controlled records.
• Do not leave unexplained blank spaces that could later be completed without traceability.

Wrong approach:
Perform the activity first, write values on scrap paper, and reconstruct the GMP record at the end of the shift.

How to Correct a GMP Record

For paper records, corrections should preserve the original information and make the change traceable. A common controlled practice is to place a single line through the incorrect entry so it remains readable, enter the correct information, and add the required initials/signature and date. A reason may also be required depending on the significance of the correction and the company's procedure.

Example:
Incorrect: 25.6 kg   Correct: 26.5 kg   Initial/date: JS / 09-Aug-2026
The original value remains readable and the correction is attributable.

Practices such as correction fluid, erasing, overwriting, deleting the original entry, or rewriting the entire page can destroy traceability and should not be used where they conflict with approved procedures and data-integrity expectations.

Controlled Documents and the Document Lifecycle

Pharmaceutical documents should be controlled from creation through retirement. ICH Q7 describes controls for preparation, review, approval, distribution, revision, superseding, withdrawal, and retention of documents related to API manufacturing.

1. DraftCreate the document using the approved format and defined requirements.

2. ReviewTechnical and quality reviewers assess accuracy, clarity, and compliance.

3. ApproveAuthorized personnel approve the document before effective use.

4. Issue & TrainControlled copies are issued and affected personnel are trained where required.

5. ReviseChanges are reviewed, approved, version-controlled, and implemented.

6. Retire & ArchiveSuperseded versions are removed from use while required records are retained.

Practical GDocP Examples

Example 1: Temperature Recording

Weak practice: Operator checks a room temperature at 09:00 but waits until 12:00 to enter the result from memory.

Good practice: Record the actual reading at the time it is observed in the approved record or validated electronic system.

Example 2: Blank Field

Weak practice: A required equipment-cleaning field is left blank with no explanation.

Good practice: Follow the approved procedure for documenting a field that is not applicable or for investigating a missed activity. Do not invent data later.

Example 3: Obsolete SOP

Weak practice: A printed old SOP remains in the laboratory and is accidentally followed after a new revision becomes effective.

Good practice: Controlled distribution and withdrawal processes prevent superseded copies from being used.

Example 4: Laboratory Raw Data

Weak practice: Only the final passing result is retained while previous injections or calculations are discarded.

Good practice: Retain complete GMP data and review relevant passing, failing, suspect, and supporting data according to applicable procedures.

Common Documentation Mistakes

Backdating recordsDestroys reliable chronology and contemporaneous documentation.

Pre-signing formsCreates evidence of an activity before it actually occurs.

Using correction fluidCan hide the original entry and remove traceability.

Uncontrolled worksheetsCan create unofficial original data outside the document-control system.

Unexplained blanksMake it unclear whether an activity was performed, missed, or documented later.

Using obsolete proceduresCan cause work to be performed against an invalid instruction.

Good Documentation Practices for Electronic Records

Electronic documentation follows the same core expectations of traceability, accuracy, completeness, and control, but the controls are implemented differently. Depending on the system and applicable requirements, important controls can include:

• Unique user accounts rather than shared credentials.
• Role-based access and appropriate privileges.
• Audit trails and review of critical changes where appropriate.
• Electronic signatures where applicable.
• Validated or appropriately controlled computerized systems.
• Backup, retention, archival, and retrieval controls.
• Protection of original electronic records and associated metadata.

Electronic records are not automatically more compliant than paper records. A poorly controlled system can create major data-integrity risks even if the screen looks professional.

GDocP vs Document Control vs Data Integrity

Concept	Main Focus	Example
GDocP	How records are created, completed, corrected, and maintained.	Contemporaneous entry and traceable correction.
Document Control	How documents are approved, issued, revised, distributed, and retired.	Removing obsolete SOP versions from use.
Data Integrity	Whether data remain trustworthy throughout the lifecycle.	Preserving complete raw data, metadata, attribution, and audit history.

Good Documentation Practices for Pharma Interviews

Strong interview answer:

“Good Documentation Practices ensure GMP records are complete, legible, contemporaneous, attributable, accurate, controlled, and traceable. I would use approved documents, record activities when performed, never obscure original data, make corrections transparently, avoid unofficial records, and ensure documents are properly reviewed, retained, and available.”

Frequently Asked Questions

What is GDocP in pharma?

GDocP means Good Documentation Practices: the principles and controls used to ensure pharmaceutical records are reliable, traceable, complete, controlled, and reviewable.

Is GDocP the same as GMP?

No. GDocP is one important part of GMP and the pharmaceutical quality system. GMP covers a much broader range of manufacturing and quality requirements.

Is GDocP the same as data integrity?

No. Good Documentation Practices support data integrity, but data integrity is broader and includes electronic data, metadata, access control, audit trails, processing, backup, archival, and governance.

Can I use correction fluid on GMP records?

Correction methods should preserve the original information and follow the approved procedure. Correction fluid or erasing can obscure the original entry and is generally inconsistent with traceable GMP documentation practices.

Why should entries be contemporaneous?

Recording information at the time of the activity reduces reliance on memory and helps preserve accurate chronology and traceability.

Can electronic records follow GDocP?

Yes. Electronic records should meet the same quality principles while using appropriate technical controls such as unique accounts, access control, audit trails, retention, backup, and electronic signatures where applicable.

Related Pharma Quality Guides

• GMP in Pharmaceutical Industry
• Data Integrity in Pharmaceutical Industry
• OOS in Pharmaceutical Industry
• Deviation in Pharmaceutical Industry
• CAPA in Pharmaceutical Industry
• Change Control in Pharmaceutical Industry

Official and Authoritative Sources

• WHO — Quality Assurance of Pharmaceuticals, Volume 2: GMP and Inspection
• FDA — Data Integrity and Compliance With Drug CGMP
• FDA — CGMP Questions and Answers: Laboratory Controls
• FDA / ICH Q7 — GMP Guidance for Active Pharmaceutical Ingredients

Key takeaway
Good documentation is not paperwork added after the job. It is part of the GMP activity itself. Strong GDocP makes pharmaceutical work traceable, reviewable, scientifically defensible, and trustworthy.