A finance advertiser wants to report on degree program performance across multiple sub-manager accounts using a nested structure that groups related data into parent-child categories. Which characteristic distinguishes custom dimensions from labels for this specific task?

In Search Ads 360 , custom dimensions add extra information by defining a data table that can be attached to campaigns, ad groups, keywords, ads, or product groups. Each row contains a primary dimension value and can also include one or more secondary dimension values, which creates a structured parent-child reporting setup. Google specifically recommends custom dimensions for annotations that imply multiple levels or hierarchical relationships, because secondary dimensions add structure instead of relying on naming conventions. That makes them the better choice for grouping related degree-program data and summarizing performance across organized categories. Google Help+1