How to Migrate Lab Data to a LIMS Without Losing a Single Record (Our Process at 1LIMS)

We’ve helped 75+ labs move their data into 1LIMS. What surprises most teams is how much of the work happens before the first data import. The good news: data migration is included in our one-month setup, making the transition far less stressful. Here’s how it works.

Philipp Osterwalder
CEO & Co-Founder of 1LIMS. Transforming Labs for sustainable added value 🚀

Migrating all your lab data to a new LIMS sounds simple – until you’re responsible for it.

Switching from Excel or a legacy LIMS quickly raises tough questions:

  • How to move tens of thousands of records without breaking traceability?
  • If our data lives in different formats, who cleans it and when?
  • How to avoid downtime during migration?
  • How to make sure nothing gets lost along the way?

The concerns are valid. Many LIMS migrations do go wrong because they’re treated as a basic data import rather than a controlled, validated process.

At 1LIMS, we’ve seen data migration become the main barrier that prevents labs from adopting a LIMS, especially in food and manufacturing environments, where data integrity and traceability are non-negotiable. That’s why we built a structured migration process and included it in our one-month setup.

The goal is simple: help labs move safely, without losing records or disrupting daily work.

Below, we explain how LIMS data migration to 1LIMS works, step by step.

TL;DR: Key things to know about data migration to 1LIMS
Excel setups hide risks. Duplicate samples and inconsistent IDs are common and must be resolved before moving to a LIMS.
Migration happens in five controlled stages. It usually takes 1-2 weeks.
You see your data before it goes live. A test import into a sandbox lets your team verify results, workflows, and reports with real data.
Most migration work happens before the first import. Reviewing data, mapping logic, and cleaning issues prevents problems later.
Downtime is avoided. The final switch is planned only after validation and acceptance, with legacy systems running in parallel.
Data migration is part of the setup. 1LIMS includes migration and training in its one-month onboarding process.

What a controlled LIMS data migration looks like with 1LIMS

Case in point. When Zweifel Chips & Snacks AG, a Swiss snacks manufacturer, was evaluating a LIMS, their quality lab worked with a mix of Excel spreadsheets and paper records. As data volumes grew, this setup increased the risk of errors and led to lost samples.

This is a familiar starting point for many labs we work with: data is spread across files and formats, Excel is no longer a fitting tool. And while adopting a LIMS promises structure, the idea of migrating years of data comes with understandable concerns about data loss or disruption.

Having worked with more than 75 labs, we’ve shaped a migration process that makes this transition structured, predictable, and far less stressful.

"
We looked at other LIMS our partner labs were using to see if they could work for us. After comparing those, we decided on 1LIMS. It was small enough and had exactly what we needed.
Hadassa Zolliker,
Head of Quality Assurance at Zweifel Chips & Snacks AG

In practice, migrating data to 1LIMS typically involves five stages:

Stage 1: Review historical data to define scope and build a realistic migration plan.
Stage 2:
Understand the logic behind your lab data so it transfers correctly.
Stage 3:
Identify and resolve data issues before they enter the new system.
Stage 4: Import a representative data subset and validate it together with your team.
Stage 5: Go live through a controlled switchover with minimal disruption.

Stage
What happens
Why it matters
1. Review data
Historical data is collected and assessed
Sets realistic scope and prevents surprises
2. Map logic
Legacy data logic is translated into structured fields in LIMS
Preserves how the lab actually works
3. Clean data
Duplicates and inconsistencies are resolved
Prevents bad data entering the LIMS
4. Test import
Data is validated in a sandbox. Team training
Confirms everything works before go-live
5. Go live
Final migration with parallel run
Avoids downtime and data loss

See also: How to integrate LIMS with your lab in 30 days.

Let’s take a closer look.

Stage 1. Legacy data landscape

This is where we collect and review your historical data to build a realistic, controlled migration plan.

We start with a LabCheck workshop, which can be conducted either on-site or online. Together with your team, we review all existing data sources. In most labs, this is a mix of systems and formats, such as:

  • Excel spreadsheets (the most common case)
  • Microsoft Access databases
  • Legacy LIMS platforms that no longer meet current requirements
  • Other structured sources such as SQL databases and CSV files

From there, we collect representative sample files. Using our internal analysis tools, we assess data structure, quality, and potential risks. Then, we identify what needs to be cleansed, standardized, or clarified before migration.

The amount of historical data we migrate depends on your regulatory and operational needs. In most cases, labs choose to migrate five to seven years of data to support compliance and trend analysis. If required, we can migrate the full historical dataset.

Stage 2. Mapping data to 1LIMS

This is where we clarify what your lab data means and translate it into structured fields so it works reliably in 1LIMS.

Say your lab has an Excel sheet with a column called “Result”.

Inside that column, people enter things like:

  • Pass
  • Fail
  • OK
  • Re-test
  • Fail (but acceptable for internal batch)

Everyone in the lab knows what this means:

  • “OK” = pass for internal checks
  • “Fail (but acceptable…)” = doesn’t block release
  • “Re-test” = sample still open

But this logic lives only in people’s heads. Excel allows that flexibility. A LIMS doesn’t.

During mapping, we work with you to turn these free-text values into clear, structured statuses and make rules like “does this block a batch?” explicit. This ensures your lab’s existing data logic is carried over correctly before anything is imported into 1LIMS.

Planning a LIMS migration?

See what migrating your lab data would involve in a 30-minute digitalization workshop. No commitment.

How do we map data?

We work with your lab managers, quality managers, and lab technicians to validate the meaning of the data and confirm how it’s used in daily work. We start with the core entities every lab works with: samples, customers, methods, and results.

Mapping is done using our proprietary ETL (Extract, Transform, Load)engine, which includes a visual mapping interface. Together with your team, our migration specialists confirm data meaning and drag and drop source fields from Excel or legacy systems to their corresponding fields in the 1LIMS schema.

How lab data moves into 1LIMS via an ETL process
How lab data moves into 1LIMS via an ETL process

For common setups (like standard Excel layouts or known legacy LIMS platforms) we use pre-built mapping templates. For more complex cases, like splitting a single column into multiple fields, merging values, or applying lab-specific business rules, we use a Python-based transformation layer. It allows us to handle unique data structures.

The outcome is a written, reviewable record of how each piece of legacy data ends up in 1LIMS. It can be referenced later, including during audits or follow-up changes.

Example of contents of a data mapping document

Stage 3. Data cleansing

This is where we find and resolve data issues so incorrect or inconsistent data doesn’t enter the new system.

In long-running Excel setups, it’s common to find the same sample listed more than once. For example:

  • Sample ID: 2023-045
  • Sample ID: 23-45

Both rows may have:

  • similar dates
  • similar results
  • the same client

Everyone in the lab knows this is the same sample, and that the naming just changed at some point. Excel allows this to coexist without complaints. A LIMS doesn’t.

During data cleansing, this shows up as a duplicate record with inconsistent IDs. The system can flag that the entries look like duplicates, but it can’t decide which ID is correct, whether both should be kept, or whether one should be removed.

So, this stage is where we surface issues that Excel- or Access-based setups often tolerate until they start causing confusion in a LIMS. Most commonly, these include:

  • duplicate samples or analyses
  • missing or non-unique sample and test IDs
  • inconsistent naming of clients, methods, or parameters
  • important information stored in free-text notes or comment fields

How do we cleanse data?

We treat data cleansing as a two-lane process:

Automated detection: Our import tools use built-in validation rules to automatically detect common issues, such as duplicates, missing IDs, or formatting inconsistencies. These checks flag problems and generate reports. They do not silently change data.

Manual resolution: Some issues require context and judgment. For example, deciding which duplicate entry is correct or whether older data should be retained. In these cases, we work with your lab team. You make the final decisions, and our team supports the cleanup process. Responsibility for data accuracy remains with you as the data owner.

Stage 4. Test import and quality check

This stage confirms that the migration works in a safe environment with real data before anything goes live.

At this point:

  • data has been reviewed
  • logic has been mapped
  • obvious issues have been resolved

But none of that matters unless you can see the result inside the system and confirm it behaves as expected. Stage 4 answers one key question:

If we switched to 1LIMS tomorrow, would everything actually work the way we expect?

How we run a quality check

Instead of migrating everything at once, we import a representative subset of your data (for example, the last few months) into a separate sandbox environment. This allows you to test the outcome without affecting live operations.

Validation happens in two layers:

  1. Automatic checks (system responsibility). We verify that:
    1. all expected data is present
    2. relationships are intact (for example, results belong to the correct samples)
  2. Manual checks (lab responsibility). Your team then reviews the data in the sandbox. You’ll work with a fully functional version of 1LIMS populated with your own data and can:
    1. search for samples and review results
    2. generate reports and certificates
    3. inspect audit trails
    4. test mapped workflows end to end

Training happens during this phase, too. We run administrator and end-user training while you validate the data, so your team is ready to work in 1LIMS before go-live.

Stage 5. Going live

This is where your lab’s data becomes fully available in 1LIMS – structured, complete, and ready for daily work.

By the time you reach this stage, most of the effort is already behind. Around 80% of the work happens earlier during analysis, mapping, cleansing, and testing.

The final migration itself is an easy part. It typically takes a few hours and is scheduled overnight or over a weekend to avoid disrupting daily lab operations.

After the final import, we:

  • run the same validation checks as during the test import
  • verify data completeness and relationships
  • complete a final review together with your team

During this phase, your legacy system continues to run in parallel. The final switch to 1LIMS happens only after you confirm that everything has been migrated correctly and meets your expectations.

A migration is successful when:
all agreed data is migrated completely
there is no unplanned downtime
traceability and integrity are intact
the team is trained and productive
the client formally accepts the result

Case in point: Swiss food lab migrating from Excel and paper

Zweifel Chips & Snacks AG migrated approximately 25,000 historical records from Excel and paper to 1LIMS in four weeks. All defined data was transferred successfully, with zero downtime during the switch.

The lab’s analysts were trained during the test phase and could work productively in 1LIMS from day one. By week five, the system was fully in use for daily quality control operations.

"
When we first started using 1LIMS, I was impressed with how smoothly the transition to digital went, especially considering everyone was used to paper and Excel.
Hadassa Zolliker,
Head of Quality Assurance at Zweifel Chips & Snacks AG

How we protect customer data during migration

For teams who want to look one level deeper, here are the technical measures we use to protect data integrity during migration. These controls ensure that data is transferred completely, relationships are preserved, and every step can be reviewed and audited.

What protects your data during migration
Data integrity measure
Migration risk it addresses
How it’s enforced
Why it matters
File-level verification
Files altered during transfer
SHA-256 checksums
Confirms that source files arrive exactly as exported
Transactional integrity
Partial or incomplete imports
Database transactions
Data is loaded fully or not at all. Never half-way
Relational integrity
Broken relationships between records
Foreign key constraints
Results can’t exist without samples; traceability is preserved
Post-load validation
Silent data errors after loading
Automated validation checks
Record counts, values, and terminology are verified
Immutable audit trails
Missing audit evidence
Built-in LIMS audit trail (21 CFR Part 11 ready)
Every migration action is logged and reviewable

1LIMS: Designed for predictable data migration

1LIMS is built to make onboarding structured and predictable. Instead of relying on external IT teams or one-off scripts, our implementation team handles data migration end to end and guides your team.

Migration is included as part of the implementation scope. In practice, 1LIMS software costs vary between €5,500–€23,000 (≈ $6,400–$27,000). This covers all stages: lab assessment, configuration, data migration, and team training.

Today, 75+ labs across Europe and beyond use 1LIMS in daily operations. If you’re considering a move to a modern LIMS, too, we’re happy to walk you through how it would work for your lab.

A practical way to prepare for a data migration

Finally, if you’re preparing for a migration, whether with 1LIMS or another system, it helps to think through a few basics:

  • Collect all legacy data sources, including spreadsheets, databases, and exports from an existing LIMS.
  • Decide which data needs to be retained for daily work, reporting, and compliance.
  • Note any known issues such as missing IDs or duplicate records.
  • Involve your lab team early. They know the data best and will spot issues no system can detect on its own.

These steps don’t make migration trivial, but they do make it manageable. Because a well-prepared migration is about reducing surprises once the data is inside the new LIMS.

Before migrating your data, make sure your lab is ready.
Start with the Lab Digitalization Guide.
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Philipp Osterwalder
CEO & Co-Founder of 1LIMS. Transforming Labs for sustainable added value 🚀

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