Moving from Tally and Excel to Odoo: a practical checklist

Most businesses we meet run on a mix of Tally for accounts, Excel for stock and WhatsApp for orders. It works until it doesn’t: stock numbers don’t match, invoices go out late, and only one person knows where everything is. Odoo puts sales, stock, accounts and GST in one system. Here’s how to move without stopping your business.

Signs you’ve outgrown Excel

• Stock in your sheet never matches stock on the shelf.
• You re-type the same order into two or three places.
• GST filing takes days because invoices are scattered.
• You can’t see today’s sales without calling someone.

If two or more of these sound familiar, the time you spend fixing mistakes already costs more than an ERP.

What to prepare before you start

You don’t need clean data on day one, but you do need these lists. Collect them in Excel; we import them for you.

1. Customers and vendors with GSTIN, state and contact person.
2. Products with HSN code, unit, tax rate and selling price.
3. Opening stock per warehouse, counted on one fixed date.
4. Opening balances from Tally: receivables, payables and bank.
5. Who does what: the people who will create orders, approve them and post invoices.

How long it really takes

For a business with one to three branches, a typical move takes three to five weeks:

Week	What happens
1	We map your current process and set up GST, accounts and warehouses.
2	Products, customers and vendors imported. Custom fields and reports added.
3	Your team practises on a test copy with real orders.
4	Opening stock and balances posted. You go live.

Mistakes that delay go-live

• Copying every old Excel column. Most of them exist because Excel had no better place for the data.
• Skipping staff training. A one-hour session per role saves weeks of confusion.
• Running both systems for months. Run them side by side for a week, then switch off the old one.

After go-live

The first month is when small fixes matter: a report layout, a missing field, an approval step. Keep a single list of requests and review it weekly with whoever set up your system. After that, most businesses add one module at a time, often POS, payroll or a connected online store.