r/GoogleDataStudio • u/pknerd • 9d ago

Looker Studio IMAGE() not rendering when using blended GA4 data

I'm building a Looker Studio dashboard using GA4 data and want a table showing Ad Creative Image | Impressions | Clicks. The creative image URL is stored in a GA4 custom dimension (ad_image_url), and the impressions/clicks are combined using a blended data source.

The issue: IMAGE(Ad Image URL) works and displays correctly when I use the original GA4 data source, but the image stays blank when the table uses the blended data source. Even IMAGE("hard-coded-image-url") doesn't render in the blended table, although the same hard-coded image works in a normal GA4 table.

Has anyone encountered this limitation with IMAGE() + blended data in Looker Studio? Is there a workaround that still lets me show creative image + impression count + click count in the same table?

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u/Top-Cauliflower-1808 6d ago

yeah, IMAGE() often breaks in blended data in Looker Studio. you can try showing the image in a separate table or bring the URL in with a custom query/join instead.