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Yes, you can tweak how the Landing page dimension shows in GA4. While GA4 does not provide out-of-the-box functionality to simplify URLs, the powerful feature of BigQuery Export provides a great platform to perform such modifications. This can be carried out by using REGEXP functions in SQL to extract the first two components of a URL.
You can also use this extracted data to form a new ‘shortened’ dimension, in effect creating a new ‘streamlined’ view of your data without making changes to your original Landing page dimension. This will help you manage the high variability (“high cardinality”) in your page paths without losing detail in your original data. Do note that some technical know-how is needed for this process. You might need a developer or someone with knowledge on BigQuery and SQL to implement these changes.
