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Import an existing customer list

Bring your contacts over from another tool via CSV.

Updated 17 June 2026·2 min read

Already have a customer list? Import it from Dashboard → Customers → Import CSV so you don't start from zero.

  1. Dashboard → Customers → Import CSV.
  2. Upload your file.
  3. Fidz matches common header names automatically (phone / mobile / telephone / cell variants).
  4. It dedupes against customers you already have.
  5. Review and confirm.
  • Limits — up to 10,000 rows per import and 5 MB per file.
  • Imported contacts are set to email-opt-out until they opt in, to keep you compliant.

To go the other way, use Export CSV (see the export article). You can also add customers one at a time with Add customer.

Because imported contacts are opt-out by default, don't email-blast them immediately — let them opt in first.