Learn the whole workflow, not just the feature.

The complete agent setup: account, key, starter credits, first count, first masked preview, and a verified export. Including every error you might hit on the way and exactly how to get past it.

The complete terminal workflow: install and key handling, free counts and searches, saved lists, verified exports with recovery, verify from a file, the six exit codes, and a cron job that refreshes a segment without ever surprising you with a bill.

The complete build: geography, industry, size, seniority, titles, keywords, exclusions, in the order that makes every number readable. Plus what to do when the count is a million, when it is eleven, and how to save the result so it survives next quarter.

A precise segment that is too small to feed a campaign is a solvable problem. Synonym chains, adjacent industries, seniority laddering and geographic expansion, in the order that costs you the least precision, plus the signals that tell you widening has gone too far.

Verification at export explained from first principles: the grades, the default that protects you, the two separate credit pools, and the complete workflow for cleaning a list you brought yourself, including every upload error and what it means.

Every step between a finished export and a running campaign: the CSV anatomy, column mapping into any sequencer, dedupe and suppression, splitting one file into several sequences, and the rows that should never be in your first campaign.