For IT managers and FM teams considering a switch, the software itself is rarely the hard part. The hard part is what happens to years of accumulated asset data - warranty records, service histories, compliance certificates - when it moves from a legacy system or a tangle of spreadsheets into something new.
This matters because asset data isn't just historical record-keeping. It's what proves a piece of equipment was serviced on schedule, what informs future replacement planning, and what auditors ask for when reviewing compliance.
A migration that loses or corrupts this data doesn't just create short-term admin headaches; it can undermine the accuracy of maintenance decisions for years afterward.
What Is FM Data Migration, and What Does It Actually Involve?
FM data migration is the structured transfer of asset related information from an old system into a new one, while preserving accuracy, structure, and traceability. This information typically includes:
- Asset records, such as equipment identifiers, locations, specifications, and installation dates
- Maintenance logs, including past work orders, technician notes, and service frequency history
- Documents, such as warranty certificates, manuals, and compliance paperwork attached to individual assets
- Compliance history, including inspection dates, certification records, and evidence of regulatory servicing
Unlike a simple file transfer, asset data is relational. This means:
- A single piece of equipment is rarely a standalone record. It's typically linked to a physical location, an ongoing planned maintenance schedule, one or more compliance requirements, and a service history.
- All of these linked elements need to move together during migration. If they're separated or mismatched, the new system ends up with fragmented or incomplete records.
- The relationships between assets also matter. A component like a pump or motor may sit within a larger system, such as HVAC infrastructure, and that hierarchy needs to be preserved for the data to remain meaningful.
Because of this complexity, migrating FM software rarely works as a straight export and import job. Instead, it requires:
- Deliberate field mapping, to confirm how data structured in the old system corresponds to fields and categories in the new one
- A validation step after migration, to check that no records have been dropped, duplicated, or disconnected from their related information
- Reconciliation checks, comparing totals and key details before and after migration to confirm the transfer was accurate and complete
How to Migrate Asset Data Without Losing It: A Step-by-Step Process
Follow this sequence to reduce the risk of data loss during a facility management software switch:
- Audit your existing data before exporting anything. Identify what verified, trustworthy data you actually have in your current set-up - asset registers, maintenance logs, compliance certificates, warranty documents- and flag what's outdated, duplicated, or incomplete. Migrating bad data into a new system just relocates the problem.
- Standardise naming and categorisation. Legacy spreadsheets often have inconsistent asset names, mismatched location tags, or duplicate entries created by different staff over time. Clean this up before migration, not after - it's significantly harder to fix once data is live in a new system.
- Prioritise critical and compliance-linked assets first. Assets tied to mandatory servicing or safety obligations should be migrated and validated before lower-priority items, ensuring your most important records are accurate from day one.
- Map fields between old and new systems. Confirm how your legacy fields (such as asset ID, location, service history, warranty expiry) correspond to fields in the new platform. Mismatched mapping is one of the most common causes of "missing" data after migration.
- Migrate in batches and validate as you go. Rather than moving everything at once, migrate by asset category or site, checking accuracy after each batch. This makes errors easier to isolate and fix.
- Reconcile totals before and after migration. Compare asset counts, maintenance records, and document attachments before and after each batch to confirm nothing has been lost in transfer.
- Retain access to the legacy system temporarily. Keep read-only access to your old system or spreadsheets for a defined period after go-live, so you can cross-check historical records if a discrepancy surfaces later.
- Run a parallel test period where possible. Before fully decommissioning the old system, operate both in parallel for a short window to confirm the new system's data holds up under real day-to-day use.
What Data Is Most Often Lost in FM Migrations - and How Do You Prevent It?
Certain categories of data are consistently at higher risk during a facility management system switch:
- Historical maintenance notes. Free-text comments in old work orders often don't map cleanly to structured fields in a new system and get dropped if not manually reviewed – especially if your system needs to operate across multiple sites.
- Attached documents and certificates. Compliance certificates, warranty PDFs, and service reports stored as email attachments or in shared drives are easy to overlook during a data-only migration.
- Asset relationships and hierarchies. Where one asset is a sub-component of another (a pump within a larger HVAC system, for example) these relationships can be lost if the migration treats each asset as a standalone record.
- Custom fields specific to your organisation. Legacy systems often include bespoke fields built up over years. These need explicit mapping, or they simply won't appear in the new platform.
The prevention strategy for all four is the same: build a full data inventory before migration begins, and treat document and relationship mapping as seriously as the core asset data itself.
Migration Is Step One, Not the Whole Project
Successful data migration is what makes a new facility management system usable from day one, but it's only the first phase of a broader implementation. Once your asset data is accurately migrated, the next priority is configuring workflows and training your team to use the new system effectively. For a complete view of what that process involves, see our step-by-step guide to facility management software implementation.
Getting migration right protects the years of asset history your team has already built, and ensures your new system starts with data you can actually trust - rather than a fresh set of problems inherited from the old one.
If you're planning a switch and want migration support built into the process, FMI Works can walk you through what a structured FM data migration looks like for your asset base. Book a demo to discuss your specific systems and data requirements.
