Audience Sync

Early access · Spreadsheets → ad audiences

Your spreadsheet, as an ad audience.

Upload a CSV or Excel file and Audience Sync builds a matched audience in your ads account. When the list changes, upload the new version. Only the added and removed rows are sent.

Book a demo See how it works

No reformatting by hand. No full re-uploads. Emails hashed on arrival.

Upload CSV files Excel files (.xlsx) Get Company, contact and exclusion audiences in your ads account

Why it exists

Audiences go stale the day you upload them.

The manual routine

  1. MonExport the list as a CSV
  2. MonReformat columns, fix domains, upload
  3. WedAudience finally matches
  4. Next week30 rows added, 4 customers signed. Nobody redoes the cleanup.

Ads keep reaching new customers and miss the accounts you just added.

With Audience Sync

  1. OnceUpload the file and confirm the columns
  2. Any timeUpload the new version of the list
  3. Each uploadOnly added and removed rows are sent
  4. AfterMatch rate and size read back

The audience matches your latest file, with no cleanup by hand.

Setup

Running in about 10 minutes.

  1. Connect your ads accountSign in as a user with an advertiser role and choose the ad account to build audiences in.
  2. Upload a fileA CSV or Excel file. For Excel, pick the sheet and the header row.
  3. Confirm the columnsAudience Sync recognizes common headers like Company, Website and Email. You confirm or change them.
  4. Create the audienceName it and choose company, contact or exclusion. The first upload goes out right away.

Read the full walkthrough →

Why a focused tool

Just the audience. Nothing to replace.

Only the changes

Upload a new version and only the added and removed rows are sent.

No pixel, no cookies

Nothing to install on your website. Audiences come only from files you upload.

No cut of your ad spend

You pay for Audience Sync, never a percentage of what you spend on ads.

Works with any list

If you can export it to CSV or Excel, you can turn it into an audience. No platform to roll out.

Mapping and cleanup

Messy files in. Clean audiences out.

  • Column mapping. Recognizes common header names for company name, website, email, name and country. You confirm before anything is sent.
  • Website domains. Strips http, www and page paths, so "https://www.example.com/about" becomes "example.com".
  • Countries. Turns country names into 2-letter codes.
  • Duplicates and bad emails. Removes duplicate rows and skips emails that aren't valid.
  • Skipped rows reported. You see which rows were left out and why.

Cleanup follows fixed rules, the same for every file. Nothing is guessed, and no outside data is added.

Use cases

Run paid campaigns from lists you already keep.

Target accounts

Run ABM campaigns on your tier 1 list. Upload the new version as accounts are added and dropped.

Target accounts · Tier 1

Known contacts

Reach the people you already know, matched by hashed email.

Buying committee contacts

Event and webinar attendees

Turn an attendee export into an audience right after the event.

Webinar attendees · Q4

Suppress customers

Stop paying for prospecting ads shown to people who already buy from you.

Current customers

Win-back

Re-engage closed-lost accounts from a list sales already keeps.

Closed-lost, last 12 months

Seed lookalikes

Use your best customers as the starting point for predictive audiences.

Best customers

See the use cases in detail →

Audience health

Know an audience is ready before you spend on it.

After each upload, Audience Sync checks the audience periodically and reads back its match rate, size and status. You see it in the app before you launch a campaign.

What each status means →

  • BuildingUpload sent, still matching
  • ReadyMatched and big enough to run
  • Below minimumUnder 300 matched members
  • Needs attentionReconnect your ads account
  • FailedThe upload didn't go through

Your data

Your files build your audiences. Nothing else.

Hashed on arrival

Emails are SHA-256 hashed the moment we receive them and never stored in plain text.

Files deleted

Uploaded files are deleted after processing. No bought data, no outside enrichment.

Never pooled

One customer's lists build that customer's audiences, and nobody else's.

Deleted on exit

Remove an audience and its stored list data is gone within 30 days.

Security and data →

Questions teams ask first

Which files work?

CSV and Excel (.xlsx). For Excel, you pick the sheet and the row that holds the headers. One file builds one audience.

How do I update an audience?

Upload a new version of the file. Audience Sync compares it with the previous version and sends only the rows that were added or removed. You can also add or remove a single row by hand in the app.

How long until an audience is usable?

The first upload goes out right away. Matching usually takes 24 to 48 hours, and the audience needs at least 300 matched members to run.

Do you store email addresses?

No. We hash them with SHA-256 as soon as they arrive and keep only the hash.

All questions →

Turn your first list into an audience.

Audience Sync is in early access. See it build an audience from your own file in a 20-minute demo.

Book a demo