While teaching a new account manager how to build a Search campaign, you tell her that she should group similar keywords together
Correct Answer
create ads that are relevant to all keywords
Why is this the correct answer?
When similar keywords are grouped together in an ad group, you should create ads that are relevant to all those keywords. The purpose of grouping similar keywords is to enable highly targeted ad copy — when all keywords in a group share a common theme, one well-written ad can address all of them with high relevance. This improves Quality Score across the group, increases CTR, and ensures users see messaging that closely matches their search intent. The ad does not need to be unique per keyword — it needs to be relevant to the keyword theme.
Why are the other options incorrect?
create a different ad for each keyword
Creating a different ad for each keyword is overly granular and impractical at scale — the benefit of keyword grouping is that one themed ad can serve the entire group effectively.
create multiple ads for each keyword
Creating multiple ads for each keyword adds unnecessary complexity — the right approach is multiple ad variations per ad group, not per individual keyword.
only create one ad that’s relevant to all keywords
Creating only one ad for all keywords across an entire campaign would be too broad — relevance suffers when one ad must serve keywords across different themes.
Real-World Example
An account manager creates an ad group for running shoes keywords: running shoes, best running shoes, mens running shoes. One ad with the headline Find Your Perfect Running Shoe is highly relevant to all three keywords. Quality Score averages 8/10 across the group because the ad naturally addresses the shared intent of all keywords.