Audience
Import & export
Bring an existing list into Sendcore from a CSV, or export your contacts. Store customers sync automatically, so import is mainly for lists from other tools, events, or offline sign-ups.
Import contacts from CSV
- Go to Audience → Imports.
- Upload a CSV with an email column; optional columns are matched automatically — first name, last name, phone, birthday (powers the birthday automation), tags, subscription status and extra profile fields, including the columns of Omnisend and Shopify exports.
- Map any unmatched columns and start. Contacts are de-duplicated by email.
Big lists are fine: imports run in batches, so tens of thousands of rows go through reliably, and imports are unlimited on every plan, Free included. Re-importing the same file is safe — contacts merge by email, existing data is enriched and never blanked. When the file carries a consent/status column (e.g. Omnisend's “Subscribed”), each contact lands with the right subscription status; rows without consent import as non-subscribed.
Coming from Omnisend?
Prefer the one-click migrator over CSV when you can — it also brings tags, images, templates, segments and draft automations. See Migrate from Omnisend.
Only import people who opted in
Importing a list states those people agreed to hear from you. Sending to purchased or scraped lists hurts deliverability and breaks anti-spam law — see Deliverability & compliance.
Export contacts
- Go to Audience → Exports.
- Start an export; when it's ready, download the CSV.
After importing
- Tag the imported batch so you can find and segment it later.
- Check subscription status — imported contacts should be people who consented.
- Build a segment and send them a first campaign.