Sorry for the confusion—There isn't any bugs/double charge The waterfall runs through providers to find emails, then validates each one. When a provider finds an email, you’re charged credits for that lookup because the provider did its job. Each provider has its own database and works independently, so there’s no way to predict results or pass emails from one provider to another. These validation columns are hidden by default to keep your table clean, but you can reveal them by selecting "Show All Columns" - this lets you review the email validation status directly.
Once an email is found, it’s sent to a validation provider: If valid, it appears in the final column (since the merge column is set to output only valid emails). If invalid, that result is used as a run condition to trigger the next email verification tool. If another provider finds the same email, we skip re-validation to save you credits — but you still pay for the initial lookup. Each email-finding tool is independent and doesn’t communicate with the others. The key point: only validated emails appear in the final column. That’s why you see empty cells even when providers found emails — they didn’t pass validation. We also prevent re-running validation on emails that were already detected as invalid. Here’s a video walking through your table: https://www.loom.com/share/e79acd92841a4706b1710c4ce1bddaa4 If you have any more questions or need further assistance, feel free to ask!
