Picto thématique

Rule n° 40 - The detailed sub-total is indicated before final validation of the order.

Transparency is always best practice. A global price detailing taxes is good. A sub-total breaking down all costs is even better.

#E-Commerce #Development


  • Provide users with details of the prices of their orders.
  • Remove an obstacle to order placement.


Indicate on the order summary form and before validation, the detailed subtotal of the cost of the product or service ordered.


In an online sales website:

  • Carry out a test order;
  • Check that there are detailed subtotals (quantities, amounts, costs, insurance, etc.) before validation.

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