Online shoppers are being misled through online sales.

The Commerce Commission has issued a formal warning to online retailer, Occasion Box, for making false and unsubstantiated claims on its website last year.

It comes after The Warehouse Group's 1-Day, has been fined $840,000 for misleading how long its daily deals would run for, and the quantity available. 

Fair Trading General Manager Vanessa Horne told Kate Hawkesby this is a good reminder for other businesses.

She says they need to be able to back up any claims.

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