A plain-language explanation
The sales funnel is a model describing the stages through which the recipient goes from the first contact with the brand to the purchase and further relationship.
Where it helps in practice
A sales funnel describes stages from first contact to decision, while real people may return, skip steps and use several channels.
The decision before implementation
Name stages by customer behaviour, define entry and exit criteria and remove measures nobody uses.
How to verify the result
Measure progression, time, loss, returns and sales quality separately by source and audience.
