Yes, running multiple campaigns with different objectives on the same Meta ad account can affect performance, but it depends on how you manage them.
The biggest risk is audience overlap—if different campaigns are targeting the same users without exclusions, they may compete against each other in the ad auction, driving up costs and reducing efficiency.
Another factor is budget allocation—Meta’s algorithm tends to favor higher-performing campaigns, which can cause others (especially with less data or lower budgets) to under-deliver.
To avoid conflicts, structure your campaigns around the funnel: use Engagement or Awareness for top-of-funnel, Traffic or Leads for mid-funnel, and Conversions for bottom-of-funnel.
Always use clear audience segmentation and exclusions to prevent internal competition. When managed properly, multiple objectives can support each other and drive better full-funnel results.