Keyword insertion dynamically populates your ad text with a relevant keyword from your ad group, improving relevance and click-through rates (CTR).
Keyword insertion is a Google Ads feature that dynamically updates your ad's headline, description, or URL to include one of the keywords that triggered the ad, making it more relevant to a user's search.
This is especially useful in responsive search ads, as it allows for a single ad group to have highly relevant ads for various related keywords without needing to create a separate ad for each one.
You can control the capitalization of the inserted keyword and provide default text for instances where the keyword is too long to fit