True or false? marketing is responsible for defining a marketing qualified lead (mql) and sales is responsible for defining a sales qualified lead (sql).

The answer is FALSE. 

Both teams must work together to come up with a common definition of the terms.

1) Determine how to classify leads
2) Assess and determine on how identified leads will be contacted (by salesperson or by automated email marketing) 

A marketing qualified lead is defined as a lead of interest. It means that the lead fits the predetermined qualifications. Its reaction to email marketing will determine whether this MQL will become a SQL. 

A sales qualified lead is defined as a hot lead. It means that the salesperson must contact the lead within 48 hours because the probability of closing a sale is high.