What waterfall enrichment means
Instead of asking one data source for an email, a waterfall asks several in sequence. If the first source has no email for a person, the next one is checked, and so on, until an email is found or every source has been tried. The search stops at the first email found, so each row uses only as many lookups as it needs.
Why one source is rarely enough
Every data source has uneven coverage. One may be strong for large companies in one country and weak for small businesses elsewhere; another may cover a particular industry well. Checking sources one after another lets the strengths of each fill the gaps of the others, which matters most for lists that mix regions, company sizes and industries.
What to upload
Waterfall Enrich needs, for each person, a first and last name together with a company name or company domain. A domain gives the most reliable match, because company names are written in many different ways. Upload the file as CSV or XLSX in the app, or send it through the REST API.
What you get back
You get your own file back with the email added where one was found, and the row marked Not found where none was. Waterfall Enrich charges 3 credits per email found; rows marked Not found use no credits.
Verify before you send
A found email is not the same as a checked one. Run the enriched file through Email Verify: every processed email comes back Valid or Invalid, at 0.5 credit per email. Send to Valid addresses, leave Invalid ones out, and keep the result column so the next campaign starts from known statuses.
Where it fits in a workflow
- After a scrape: export a Sales Navigator, group or follower list, qualify it, then enrich only the rows you will contact.
- Before a CRM refresh: fill the missing emails on records that already exist, then verify the whole set.
- From LinkedIn URLs: when you have profile URLs rather than names, use LinkedIn URL Enrich instead.
Put it into practice