Audience & TargetingAudience Overlap
What is Audience Overlap? Why Your Campaigns Bid Against Each Other
Also known as: overlapping audiences
Short answer
Audience overlap happens when two or more of your campaigns target the same people. Your own campaigns then compete in the same auction, so both campaigns cost more without producing more.
The simple way to think about it
You sent two bidders to the same auction, and both are yours. The price goes up and there is still only one item.
The usual causes
- Several ad sets using interests that actually contain the same people.
- A 1% and a 3% Lookalike running together with no mutual exclusion.
- Retargeting and prospecting campaigns that do not exclude each other.
- Several broad campaigns using the same location and age.
How to fix it
| Situation | Fix |
|---|---|
| Two ad sets on similar interests | Merge them into one |
| Tiered Lookalikes | Exclude the narrower tier from the wider one |
| Retargeting and prospecting | Exclude the retargeting audience from prospecting |
| Many broad audiences | Consolidate budget into one campaign |
Frequently asked questions
- How do I know my campaigns overlap?
- The sign is CPM rising across several campaigns at once with no seasonal cause, while total reach stays flat. Ad platforms also provide an audience overlap inspection tool.
- How much overlap is still safe?
- As a practical guide, under 20% is rarely noticeable. Above 30% starts costing money, and the audiences should be merged or one excluded from the other.
- How do I fix it?
- Three ways. Merge ad sets that target the same people, add cross-exclusions, or keep one campaign with a larger budget and switch the others off.
Related terms
Your ad numbers are only as accurate as the data behind them
Konektor captures the Click ID and sends conversions that close on WhatsApp, over the phone, or in a shop back to the ad platform.