10 common mistakes in Certificate of Analysis (CoA) management

1. Generating a CoA from scattered data

This is very likely the most frequent mistake.
Results often come from different sources:

• an in-house laboratory;
• one or more third-party laboratories;
• Excel files;
• emails;
• an ERP system.

Quality control teams then spend time searching, checking, and consolidating information before generating the certificate.
Every extra manual step creates a risk:

• a missed result;
• a data entry error;
• the wrong document version;
• confusion between two batches.

2. Using outdated specifications

A result only makes sense when compared against the correct specification.
Yet it's not uncommon to find:

• several versions of the same specification sheet;
• files saved locally;
• different specifications depending on the department.

Worse: a corrupted certificate template that gets duplicated for every validation!

Result: a product can be declared compliant on a document even though it no longer meets current requirements.

3. Manually re-entering analysis results

Manual re-entry is one of the leading causes of error in quality processes.
A simple digit transposition or a misplaced decimal point can completely change the interpretation of a result. The problem is even more frequent when results from multiple laboratories or multiple sources need to be combined (supplier data, internal data, external data, periodic results).

4. Forgetting the link between results and the batch

During an audit, one question comes up again and again:
"Can you retrieve all the analysis results performed on this batch?"
If answering requires searching through multiple files, multiple folders, or multiple manual searches, traceability becomes fragile.
A result is only valuable if it's clearly linked to:

• the right product;
• the right batch;
• the right order;
• the right specification;
• the right date.

5. Neglecting electronic signature and validation traceability

For a long time, Certificates of Analysis were printed, signed, then sent as paper or PDF files.
Today, exchanges are mostly digital and document volumes keep growing.
Yet many companies still:

• insert a signature image into a document;
• manually sign a PDF;
• generate certificates with no trace of validation at all;
• fail to keep a history of changes.

The problem isn't just the signature itself.
The real challenge is being able to demonstrate:

• who validated the document;
• on what date;
• on which version;
• with which data.

When a customer asks a question months later, or when an audit takes place, this information becomes essential.

An electronic signature built into a validation workflow helps strengthen:

• traceability;
• the reliability of certificates;
• document control;
• compliance with internal processes;
• the signer's authority.

Electronic signature of CoAs is the final step of a controlled validation process.

6. Overlooking analysis methods

Your customers and auditors also need to understand:

• what was measured;
• using which method;
• against which standard, where applicable.

An imprecise analysis method can lead to misunderstandings or follow-up requests.

7. Confusing design with readability

In the nutraceutical or ingredients sectors especially, a lot of effort sometimes goes into the appearance of Certificates of Analysis:

• colors;
• pictograms;
• icons;
• complex tables;
• elaborate layouts.

Yet a CoA isn't a sales brochure or a marketing document. Simplicity should be the rule, otherwise your certificates become hard to read, hard to interpret, and very difficult to keep up to date.
Its purpose isn't to impress, but to let any reader quickly understand:

• which product is concerned;
• which batch was tested;
• the product's expiry date;
• what results were obtained, and with which methods;
• whether the product is compliant.

Your customers should never have to search for information, interpret a result, check your methods or specifications, or guess whether a batch is compliant.

There's also another common drift worth noting: the accumulation of statements and guarantees that aren't directly related to the analysis results.
BSE, GMOs, allergens, nanomaterials, irradiation, various regulatory declarations...
All of this information is certainly relevant, but it belongs on the technical data sheet, the specification sheet, or in attestation packs.
When it floods the certificate, it makes the document harder to read and much harder to keep up to date.

8. Multiplying certificate templates

A template for one customer, another for one product, another for one specification sheet, an old version stored on a server, sometimes even a copy saved on an employee's computer...
Over time, templates multiply and you lose complete control over your documents, versions, specifications, and ultimately your guarantees.

9. Neglecting archiving

Finding a CoA issued three years ago should take just a few seconds.
Yet many companies still keep their certificates as Word and PDF files:

• in shared folders;
• in email inboxes;
• across various network drives.

These files can easily be renamed or modified, and when a customer requests a document or an audit begins, the search can quickly become an uphill battle, and that simply isn't acceptable!

10. Thinking the CoA itself is the problem

This is probably the most widespread mistake.
When a company runs into trouble with its Certificates of Analysis, it often tries to fix the base Word or Excel template, by reference, by product type, which can turn out to be extremely long and complex across hundreds of references!
In most cases, the real problem lies elsewhere:

• control plans;
• scattered results;
• manual re-entry;
• validations;
• batch traceability.

The CoA only reveals the weaknesses of the underlying process.

Conclusion

Most of the errors observed on Certificates of Analysis aren't related to the document itself.
They're the consequence of:

• scattered information;
• repeated manual re-entry;
• and insufficiently structured processes.

The more centralized your quality data, the simpler, faster, and more reliable CoA generation becomes.

The real challenge isn't producing a more attractive certificate.
The real challenge is producing a certificate that's clear, understandable, traceable, and unambiguous.

Because at the end of the day, a CoA isn't a marketing document, it's a commitment and a piece of evidence.

CIKLab: the solution to put an end to these 10 mistakes

Every mistake described in this article has one thing in common: they're the direct result of scattered data, unstructured processes, and poorly suited tools. This is precisely the problem CIKLab was designed to solve.

CIKLab is an application dedicated to quality control testing management, built specifically for the nutraceutical and food ingredients sectors. Its principle: structure your entire quality control process upstream, control plans, analysis catalog, specifications, customer specification sheets, batch management, so that issuing a CoA becomes a natural outcome of the process rather than a risky task.

In practice, CIKLab lets you:

• Centralize every source of results (in-house labs, third-party labs, suppliers) in a single interface;
• Eliminate manual re-entry: data entered once is automatically pulled into every CoA;
• Link every result or test report to its batch, specification, and method for complete traceability;
• Manage a single template, configurable by customer or by regulation, with no file sprawl;
• Sign electronically with full user rights management and a complete audit trail;
• Archive and retrieve any CoA in seconds, even one issued several years ago.

The result: a Certificate of Analysis generated in one click, signed, dated, and archived automatically, with no data entry errors, no version confusion, and no wasted time.