Ask Should a digital marketer focus on one campaign or spread budget across multiple ones?

[Meridian]

When your budget is small, putting it all into one focused campaign usually gives better results than splitting it across many. With a small budget spread thin, none of the campaigns gets enough data to improve, and you end up with weak results across the board. If you have a larger budget, running multiple campaigns targeting different audiences or goals can make sense. The goal is to make sure each campaign has enough daily spend to actually test and learn. What has your experience been with managing single versus multiple campaigns?