A Marketing Cloud Account Engagement administrator wants to export a .csv of prospects that purchased a certain product within the last year. The…

The recommended way to identify the prospects who purchased a certain product within the last

year and export them to a .csv file is to create a segmentation rule based on the Product Name field.

A segmentation rule is a one-time rule that matches prospects based on certain criteria and performs

certain actions. You can create a segmentation rule that matches prospects who have the specific

product name in the Product Name field and the action to export them to a .csv file. This way, you

can get a one-time export of all the prospects who have the product name before it changes. An

automation rule, a completion action, or a dynamic list are not suitable for this goal, as they are

either recurring, real-time, or based on an activity, not a one-time export based on a field

value. Reference [Segmentation Rules Overview]