Data migration with proof that nothing was lost on the way

How do you prove nothing was lost?

Row and value reconciliation reports compare the old system with the new one, record type by record type. Row counts show that every customer, item and invoice made the trip; value totals — invoice amounts, stock quantities, outstanding balances — show that the numbers inside them did too. Where the two sides differ, the report shows it rather than rounding it away.

The reports stay with you. When an auditor, your CA or a new manager later asks whether the migration was clean, the answer is a document rather than someone’s memory. That is what moving the data once, correctly, with proof that nothing was lost, looks like on paper.

What happens before anything moves?

Profiling comes first: we look at what is actually in the source, not what the field names suggest — empty columns, dates stored in several formats, the same customer entered more than one way. The field mapping is built from that, so it records where each old field goes, or that it is being left behind.

Cleaning and de-duplication follow rules written down in advance. When two customer records are merged, the rule says which one survives and why, so the result can be checked instead of taken on trust. With dbt in the stack, the rules can be kept as code, so the same clean-up can be run again on the final extract rather than repeated by hand.

What if the new system is wrong after cutover?

The parallel-run validation window keeps the old system running alongside the new one while their outputs are compared: the same invoices, the same stock position, the same balances. Problems surface while the old system can still answer the question, not after it has been switched off.

Rollback snapshots mean that if something does go wrong, the data can be returned to a known state instead of being repaired in place under pressure. The cutover decision is made with the reconciliation reports in front of you, not on a hunch.

Is this the right package, or is a sibling a better fit?

If the move is from one CRM to another, CRM Migration & Cleanup at ₹9,000, delivered within 7 days, is built for exactly that and costs less. This package suits moves where more is at stake: stock and production data, patient or shipment records, or several sources being merged into one.

It is a one-time move, not an ongoing link. Keeping two systems in step afterwards is an integration or a pipeline — Tally Integration & Automation at ₹12,000, or Data Pipeline & Warehouse at ₹1,75,000. Setting up the destination system itself, such as an ERP & Inventory Rollout at ₹1,75,000, is priced separately.