Data blueprint
Good ERP starts with clean definitions.
Before migrating historical records, decide what each record means, who owns it and what minimum information is required. That reduces duplicate data and makes reporting more reliable.
Data area
Define first
Check before migration
Typical owner
Customers
Naming, contacts, addresses, terms
Duplicates, inactive accounts, missing details
Sales / finance
Suppliers
Supplier identity, payment terms, tax data
Duplicates, bank detail controls, inactive vendors
Purchasing / finance
Items / services
Codes, units, groups, prices, warehouses
Old SKUs, naming conflicts, stock quantities
Operations
Financial structure
Accounts, taxes, cost centres, opening balances
Reconciliations and period cut-off
Finance
The exact migration method, validation rules and required fields depend on your agreed ERP configuration and the quality of the source data.