One-time moves that can't afford mistakes
Switching CRMs, consolidating spreadsheets, merging two companies' databases, or cleaning years of messy records is usually a one-time job, but the cost of getting it wrong is permanent. A single bad transform can quietly corrupt tens of thousands of rows.
We treat migrations as engineering, not a copy-paste weekend. The script is version-controlled, runs first against a copy, and produces a report you can check before anything touches production.
- Field-by-field mapping between the old and new schema
- De-duplication with rules you approve (match on email, phone, or fuzzy name)
- Normalization of dates, phone numbers, addresses, and casing
- Validation that flags rows the script can't confidently transform
- A rollback plan and a preserved copy of the original source
How we run a migration safely
The safe pattern is always the same: dry run, review, real run, verify. You never find out on the live system that a mapping was wrong.
We run the full transform against a staging copy, hand you a reconciliation report (row counts in vs. out, what merged, what was rejected), and only execute against production once the numbers match what you expect.
- Dry-run mode that changes nothing and reports what it would do
- Row-count and checksum reconciliation before and after
- A rejected-rows file so no record disappears without a trace
- Idempotent design so a re-run doesn't create duplicates
- Backups taken and verified before the real run
More on automation & scripts
Frequently asked questions
How do I know the migration didn't silently lose or mangle data?
Every run produces a reconciliation report: how many records went in, how many came out, how many merged, and how many were rejected and why. We match those counts against your expectations before going live, and the original source is preserved so anything can be re-derived.
Can you clean the data as part of the move, not just copy it?
Yes, and that's usually the point. We de-duplicate, standardize formats, split or combine fields, and flag records that need a human decision. You approve the cleanup rules before we apply them.
How is a migration script priced?
The drivers are the number of records, how many source systems are involved, how messy the data is, and how complex the field mapping and de-duplication rules are. Because it's usually one-time work, we typically quote a fixed price after reviewing a sample of your data in a free consultation.