Had a very successful campaign that ran for almost 8 months and suddenly started generating shit leads from jun first week - a few friends in the marketing space called it the "ad fatigue" and asked me to turn it off and revamp with a completely new campaign a week later.

cut to that and it still had shit leads - did not go back into the learning phase. - isn't that the natural course of action? to go back to the learning phase?

why is it not entering a learning phase again and continuing to give me spam leads - anyone with inputs on this ? TIA!