French phrase
Comment saurez-vous que ~ a réussi ?
Meaning
How will you know that ___ was successful?
When to use it
Asks what criteria will show that something succeeded. Used in evaluations or reviews to clarify success metrics.
Example dialogue
Comment saurez-vous que la campagne marketing a réussi ?
How will you know that the marketing campaign was successful?
En regardant le taux de conversion et l'augmentation des ventes.
By looking at the conversion rate and the increase in sales.