How I Migrate Your Detailed Transaction History
Every invoice, journal entry, and payment, mapped and reconciled into NetSuite, without slowing your go-live. Here's exactly how the process works.
Don’t Lose Your Detailed Transaction Data
Loading detailed transactions used to be slow, error-prone, and risky enough that implementation partners steered clients away from it. My process gives you a reliable way to bring that history into NetSuite. Here's what you get:
Your Data:
Every invoice, journal entry, and payment you choose to keep, loaded accurately during your implementation.
Your Documentation:
Documentation that ties NetSuite back to your legacy books by account, period, and segment, so your auditors are comfortable with the cutover.
Your Segment Map:
A bridge file mapping every legacy segment value to its NetSuite value, so anyone can see exactly how your data moved.
My Data Migration Process
Five steps, the same ones I've run on 100+ migrations, to bring your detailed transaction history into NetSuite without slowing your go-live.
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Import Master Records
I start by reviewing your current master records. Master records are your segment and relational data. Segment data is how you categorize your financials: GL accounts, departments, classes, locations, and other custom segments. Relational data covers the parties you do business with: customers, vendors, and employees. I'll advise on the best way to bring this data from your legacy system into NetSuite.
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Build Segment Map
Once your master records are in, I'll guide you through mapping your legacy segment values to your new NetSuite values. Every segment gets identified and carried over. This step decides how your data appears in NetSuite.
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Import Closed & Open Financial Periods
I load your detailed transactions in two batches. Closed periods go first: that confirms the migration works, lets your team validate early, and gives you real data to train on. Once you lock your legacy system, I load the open periods, from the current period through your go-live date.
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Validate Imported Data
Once everything is loaded, I tie it out against a nine-point test: trial balance, AP and AR subledgers, and annual P&L by department and class. That documentation goes straight to your auditors.
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Support After Implementation
After go-live, I'm still here for historical data changes, custom reports, or other admin work. When your auditor has a question six months later, you can call me directly.
How I Work With You
Most migrations get handed to a junior team member who rotates off before learning where the traps are. I've personally overseen all 100+ of mine. And I'm not your implementation partner: I own the migration so your partner can focus on process design and integrations.
One Contact
You work with me directly, from the first sales call to the final tie-out. No hand-offs.
Problems Already Solved
The mapping problem you're facing has likely come up before. You get the fix, not the learning curve.
A Number You Can Call
When your auditor has a question six months after go-live, you can call or text me directly.
Systems I've Migrated From
53
QuickBooks Online migrations
35
QuickBooks Desktop migrations
20+
Other legacy systems, from NetSuite to NetSuite, Sage Intacct to SAP, and Oracle Fusion
FAQs
I have experience with:
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QuickBooks Online and Desktop
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NetSuite-to-NetSuite
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Sage 100, 200, 300, and 500
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Sage Intacct
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Xero (2 clients)
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Great Plains
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Microsoft Dynamics and D365
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Epicor
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SAP
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Oracle Fusion
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Expandable
Not on the list? Tell me what you're running, and I'll tell you how I'd approach it.
Most projects run $15,000 to $20,000, priced by transaction volume, not by the hour. That covers every invoice, journal entry, and payment migrated and reconciled, a full audit documentation package, and me personally handling the load, start to finish. Tell me your transaction count and legacy system, and I'll give you a real number, not a range.
No. In my experience, most partners would rather spend their time improving business processes, building integrations, and doing phase two work that strengthens the relationship. I handle the migration so your partner can get there faster.
Yes. I've done it on 100+ migrations: invoices, bills, journal entries, and payments, not just balances. The exception is non-posting history like sales and purchase orders: NetSuite can't link them to the invoices and bills they created. Tell me your transaction volume and I'll scope it.
Yes. One client went live and couldn't reconcile cash for six months: the open bank transactions had never actually been migrated. I rebuilt the reconciliation and fixed the intercompany activity in a few days. If something's not tying out, tell me what you're seeing.
My focus is NetSuite. My process produces CSV import files, which most ERPs accept, so if you're moving somewhere else, tell me which system and I'll tell you whether my approach fits.
Ideally, start when your master records are being loaded, since mapping is the most complicated part of the project. That said, I've hit go-live dates for clients who signed one week out.
Not automatically. PDFs and images attached to transactions don't come over with the data. If you need them, I'll give you a reference list of which documents belong to which transactions, so your team can attach the ones that matter after go-live.
Count the unique transactions (invoices, bills, journal entries, and payments) in your legacy system across the years you want to migrate. My blog article walks through it for QuickBooks Online, QuickBooks Desktop, and NetSuite. Not sure how to pull it? I'll walk you through it.
Resources
Implementation Resources
Do you want to learn more about NetSuite implementations? Dive into the implementation planning process, financial data segmentation, and best practices.
View AllReporting Resources
Learn tips and tricks for optimizing reporting your financial data inside NetSuite.
View AllReady to See This on Your Data?
Tell me about your legacy system and go-live date, and I'll show you what the process looks like for you.
Talk to Paul