So originally I had a demand Gen campaign with shorts and it was performing well, not enough conversions tho to get 30 in a month. My google rep kept harassing me for a whole month calling me to change it to target cpa. Eventually I relented and did what he said and now 0 conversions since the change for over 1 month.

The target cpa number is 130, where the original cpa number was 140.

What would you suggest I do? Go back to maximize conversions?