When scheduling waterfall reruns, do I need to check each provider in the waterfall or just the first one?

You only need to check the first provider in your waterfall for scheduled reruns. Clay's waterfall logic automatically handles the sequence—if the first provider finds data, it stops there and won't check the others, which saves credits and maintains efficiency. The waterfall will run sequentially through providers only when needed, so checking just the first one triggers the entire cascade. The UI feedback has been shared with the product team for improvement.