Hey Alexander! Thanks for reaching out. Great question✨. The default dedupe setting in a table depends on the table type. For example, auto-dedupe is automatically turned on in find companies/people/job source tables, but is not for custom tables. If dedupe is disabled in a table, it means that any duplicate record imported into the table will not be auto-deleted. It's turned on by default in the examples shared above, but is not automatically turned on in custom tables. Let me know if this helps.