What defines a Static List in Marketo?

In Marketo, a Static List is defined as a list that does not update automatically and remains unchanged unless it is manually modified by a user. This means that the contacts added to a Static List will remain in that list until someone specifically removes them or adds new contacts. It is particularly useful for scenarios where you want to segment a fixed group of leads or contacts for targeted campaigns without the list being influenced by new incoming data or changes in criteria.

The nature of Static Lists contrasts with Dynamic Lists, which automatically update based on set criteria. This distinction is crucial for marketers who need comprehensive control over their segments and how contacts are organized for specific initiatives. Additionally, while other options might reference lists generated from particular sources or functions, they don't accurately define what a Static List is. The focus is on the manual aspect of maintaining the list and the lack of automation involved in its updates.