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From Spreadsheets to ERP: How to Migrate Your Inventory Without Chaos

Short answer

To migrate inventory from spreadsheets to ERP, standardise item names and units, assign unique item codes, run a physical stock count for opening balances, import in a test environment, reconcile differences, train staff, run both systems briefly and then retire the spreadsheets. Clean data and a careful opening count prevent most problems.

AWI Digital Team 2026-10-06⏱ 3 min read

Prepare the data

  • One row per item with a unique code
  • Standard units (kg, pcs, litres) and conversion rules
  • Categories and locations (warehouse, rack)
  • Reorder levels and lead times
  • Merge duplicates and remove dead items

Migration steps

  1. Freeze changes to the spreadsheet on an agreed date.
  2. Do a physical count to set opening balances.
  3. Import items and balances into a test copy of the new system.
  4. Reconcile: count a sample of items and compare.
  5. Fix mapping errors and re-import.
  6. Train store staff on receipts, issues and transfers.
  7. Go live; run the old sheet read-only for a short period.
  8. Review variances weekly for the first month.

Controls to set up on day one

  • Approvals for stock adjustments
  • Barcode or QR labels on shelves and items
  • Low-stock alerts to the buyer
  • Daily stock summary by WhatsApp or email

When to bring in help

If you have thousands of items, multiple warehouses or batch and expiry tracking, plan the migration with someone who has done it before. See our ERP solution.

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Frequently asked questions

Can I import directly from Excel?

Usually yes with a clean template; we prepare and validate the import files.

How do I avoid wrong opening stock?

Count physically on a cut-off date and reconcile a sample before go-live.

What if staff resist the change?

Involve supervisors early, keep screens simple and show them time saved.

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