Rules

Rules is a powerful tool that allows you to optimize and modify feeds with ease. Often, feeds contain information that requires adjustments, and the Rules tool enables you to create various types of rules for modifying specific fields. 

One of the key features of the Rules tool is its ability to create custom rules for different fields within your feeds. Whether you need to adjust product titles, update  descriptions, or reformat attributes, the Rules tool provides the functionality to do so efficiently. For instance, if you want all your product titles to follow a specific format, you can set up a rule that automatically generates new titles according to your desired structure.

To do that you should choose on the left side menu the Rules option. As shown in the following image you can see all the rules that have already been created - if there are any.

View more on how to create a new rule.