How do I set a date comparison for my campaign manager metrics?

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Apply a comparison to the whole table

1. Open Campaign Manager.
2. Click the date range pill in the top right.
3. Toggle Compare to and choose Previous period, Previous year, or set a Custom range.
4. Apply the change. New % Δ columns appear next to key metrics (Spend, Purchases, ROAS, etc.).

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Customize comparisons per metric view

• Saved column presets store the comparison setting. Create separate presets for Week-over-Week vs. Year-over-Year views.
• Turn comparisons off for lighter-weight QA sessions by toggling Compare to → None.

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Notes

• Comparisons rely on consistent attribution models; changing models recalculates the deltas.
• If the previous period lacks data, Stiddle shows — for the delta to avoid misleading numbers.