Amazon PPC glossary
Catch-all campaign
A broad match discovery campaign, run alongside a more structured set of exact and phrase match campaigns, used to surface search terms worth targeting directly.
Where it matters most: Book 5, The Advanced PPC Clarity Guide, in the chapter “Reaching for an Aggressive Tactic, or Staying Simple.”
Go deeper
The glossary gives you the one-line answer. The Advanced PPC Clarity Guide explains why it matters and what to do about it.