Reporting on Ad Creative Performance Across Campaigns in Looker Studio

I think you can try the checklist below:

  1. Remove all filters to check if reach and frequency appear.

  2. Change the filter rule to: RegExp contains → high-cost countries ad 1 | low-cost countries ad 1 (see reference below).

  3. Frequency can be calculated by dividing impressions by reach.

  4. If none of the above reveal any issues, it’s possible that the problem lies with the Supermetrics data pipeline.