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Data migration problems usually surface some time after the migration project has been completed. For instance, your NetSuite reports still don’t match what your old system showed. Customer records are unreliable, or finance is performing manual reconciliation of balances.
To avoid all this, you need a good NetSuite data migration strategy before the migration starts. Because if you get the data wrong, you will inherit duplicate customers, broken reports, and a team that stops trusting the system.
Let’s walk through the practical lessons AlphaBOLD has jotted down for you.
Why Do NetSuite Data Migrations Break Down After Go-Live?
Most NetSuite migrations fail after the system goes live on time. However, the data underneath it is inconsistent, duplicated, or mapped incorrectly. Some core reason of data migration failure are:
- Legacy data that was never cleaned before the move
- Formatting NetSuite can’t read automatically, like inconsistent addresses or state codes
- Duplicate customers, vendors, and items carried over from the old system
- No single owner accountable for data accuracy before cutover
- Historical data migrated in bulk without a plan for what the business actually needs
What Data Should You Actually Migrate to NetSuite?
Firstly, you need to clean the data. Consistent, well-formatted data makes it easy. Inconsistent data creates challenges down the road.
Every business brings over customers, vendors, employees, and the items it buys and sells. For each one, you need to determine the values that matter for your reporting and operations.
- Customers and vendors: name, address, payment terms, and any categorization your team relies on
- Items: name, type, and how each item should be accounted for as income or expense
- Historical transactions: how many years actually need to live inside NetSuite versus staying archived
It is quite common to have duplicate items, customers, or vendors in an existing system. It is not a serious problem, but if it compounds every time a record gets updated inconsistently across the old and new environments that is when cracks in the system start appearing. Cleaning the data you plan to move is a best practice that pays off immediately, because accurate data is what makes good business decisions possible.
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Request a ConsultationHow Do You Fix Customer and Vendor Data Problems Before They Reach NetSuite?
Two consistent problem areas in customer and vendor data are common. The first is inconsistent address data. Addresses often contain characters that NetSuite can’t read, such as letters from other languages. It is best to keep addresses in standard English characters where possible.
The second is combined address fields. Some systems store city, state, or province, and postal code as one block of text. NetSuite needs these fields separated so it isn’t left guessing which value goes where.
- State and province codes: use NetSuite’s standard two-character codes (MA for Massachusetts, QC for Quebec), not longer abbreviations
- Duplicate customers and vendors: NetSuite can identify and merge these, but review the matches before finalizing
- Leading zeros in zip codes: Excel strips these automatically unless the field is formatted as text before import
Bonus reading: NetSuite Implementation Pricing Guide and Cost of Ownership
What Item Data Mistakes Cause the Most Rework in NetSuite?
NetSuite has a few features that aren’t widely used elsewhere. Each of these features is easy to get right if you catch it before go-live.
- Display Name: NetSuite lets you set a customer-facing item name separate from the internal item name, so descriptions stay clear for the people placing orders
- UPC codes: codes with leading zeros are commonly dropped during export to Excel, so confirm your legacy system’s UPCs are intact before building the import file
- Subsidiary availability: items often import as available to only one subsidiary. Add an “Include Children” column set to “Yes” so items are available across all subsidiaries where they should be
- Customer part numbers: NetSuite stores these as a cross-reference to your internal part number, and a mismatch here is a common cause of mis-shipments once the system goes live
How Should You Handle Employee Data During Migration?
NetSuite assigns each employee to a single subsidiary by default. It creates friction for employees who legitimately support more than one. You need to create role-based access instead of subsidiary reassignment.
Assign employees a role that lets them view and edit transactions across multiple subsidiaries and keep their primary subsidiary assignment intact. Also, decide upfront how employee names will display, since inconsistent formatting makes staff harder to find inside the system.
Bonus Reading: NetSuite Managed Services: Why Companies Are Making the Shift
What Does a Failed Data Migration Actually Cost Your Business?
Cost overruns are common in ERP projects, and data migration is frequently the reason why. According to Statista, 47% of organizations reported cost overruns on ERP implementation projects in 2023.
The cost doesn’t stop at go-live. Gartner research cited by Forbes puts the average annual cost of poor data quality at $12.9 million per organization, with Harvard Business Review estimating that bad data drains $3 trillion from the U.S. economy every year.
Data accuracy problems also reach beyond IT and into finance. J.P. Morgan’s research on digital treasury transformation found that a quarter of finance teams identify data accuracy and availability as a major challenge in their transformation projects, with nearly 60% ranking it among their top concerns.
NetSuite’s own migration guidance recommends starting the migration process early and treating it as an opportunity to remove obsolete historical data.
How Do You Build a NetSuite Data Migration Strategy That Actually Works?
A NetSuite data migration strategy that holds up after go-live treats data cleanup as its own workstream, not a side task for whoever has spare time.
- Assess and clean your data early. Start before the implementation timeline forces your hand.
- Assign a data owner. Someone needs to be accountable for accuracy, not just for hitting the migration deadline.
- Migrate master data before transactional data. Customers, vendors, and items need to exist before the transactions that reference them.
- Run test migrations. Validate a sample before you commit to a full data load.
- Reconcile before go-live. Compare key totals, like accounts receivable, between your old and new systems before you cut over.
- Plan for post go-live monitoring. Data issues that slip through often surface in the first few reporting cycles, not on day one.
AlphaBOLD consultants design tailored NetSuite migration strategies that reduce errors, maintain data integrity, and accelerate time-to-value for your implementation.
Talk to a NetSuite Migration Expert
Are you struggling with legacy data issues? Let our NetSuite consultants help you streamline and de-risk your transition to NetSuite with a tailored data migration roadmap.
Request a Consultation Conclusion
Data migration is a foundational step that shapes day-to-day operations and long-term decision-making. Inconsistent formatting, duplicate records, and misaligned mappings create operational friction that outlast the project itself.
Organizations that follow a migration strategy with proactively clean their data, standardize formats, and remove all migration failure chances. AlphaBOLD ensures your NetSuite deployment delivers on its full potential. Talk to our team about your NetSuite implementation to get started.Â
FAQs
How long does a NetSuite data migration usually take?
Timelines vary by data volume and quality. Most mid-sized NetSuite migrations run four to twelve weeks. Poor data quality is the single biggest factor that extends this timeline.
Should you migrate all your historical data into NetSuite?
No. Migrating years of detailed transaction history is expensive and often unnecessary. Most businesses are better served migrating open balances and a limited window of recent transactions, then archiving the rest.
Can you fix data problems after NetSuite go-live?
Yes, but it’s more disruptive than fixing them beforehand. Post-go-live cleanup means correcting live records while your team is actively using the system. It increases the chance of new errors during the fix.
Do you need a NetSuite partner for data migration, or can you do it in-house?
Smaller, cleaner datasets can be handled in-house using NetSuite’s CSV Import Assistant. Larger or messier datasets benefit from a partner who has already solved the formatting, duplication, and mapping issues specific to NetSuite.
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