ERP data migration checklist for SMEs

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Use this checklist before ERP, CRM, finance-system or reporting migration work. It is designed for finance, operations and leadership teams that need practical cutover confidence, not a theoretical project template.

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1. Scope and ownership

List every source system, export, database and unofficial spreadsheet that feeds the migration.
Name owners for customers, suppliers, products, finance codes, stock, orders and open transactions.
Confirm what moves, what is archived, what is excluded and what needs manual sign-off.
Agree who resolves exceptions when source data conflicts with target-system rules.

2. Data quality checks

Find duplicates, blanks, invalid values, inactive records and inconsistent naming conventions.
Check finance dimensions, product categories, customer status values and supplier payment terms.
Identify fields that are mandatory in the target system but optional or missing in the source.
Rank defects by cutover risk rather than trying to clean everything at once.

3. Mapping and validation

Build source-to-target maps for critical fields and reference tables.
Document transformation rules, defaults, exclusions and validation logic.
Create record-count, control-total, balance and status checks before test loads begin.
Use the source-to-target mapping template to capture owner decisions.

4. Reconciliation and sign-off

Reconcile balances, open invoices, orders, stock, customers, suppliers and reports after each test load.
Compare trusted management reports before and after migration.
Agree go/no-go criteria before cutover weekend.
Keep an issue log with owner, severity, decision, fix and retest status.

Evidence note

These resources are based on practical ERP migration, data-readiness and reporting-reconciliation controls: named owners, source inventories, issue registers, source-to-target maps, validation evidence and sign-off before leadership relies on the numbers.

Related resources

Source-to-target mapping template This source-to-target mapping template helps migration teams capture source fields, target fields, transformation rules, validation checks, owners and sign-off status before ERP, CRM or finance-system test loads. Power BI reporting trust checklist This Power BI reporting trust checklist helps SME teams test whether dashboard problems come from report design, unclear definitions, bad source data, refresh failures or missing reconciliation controls. Data quality audit checklist for SMEs This data quality audit checklist helps SME finance and operations teams find duplicate records, missing owners, inconsistent values, spreadsheet workarounds and reporting defects before migration, reporting or automation work starts. ERP Data Migration Project Planner The ERP Data Migration Project Planner helps SMEs plan source inventory, ownership, data quality, mapping, validation, reconciliation, reporting continuity and cutover readiness before ERP test loads begin. Need help using this?
Digital Adaption helps UK SMEs produce migration readiness packs, data-quality issue registers, owner matrices and reconciliation evidence. Book a data risk call. Start with a 30-minute data risk call