To upload a customer list to a Facebook audience with Claude or ChatGPT, give the assistant the audience and the list, and approve the preview. PaidSync.ai normalises the values and hashes them with SHA-256 before sending them to Meta. Malformed phone numbers, zip codes and birth dates are rejected rather than silently uploaded.
A customer list turns your own data into an audience. Privacy is built in at the upload step:
list_fb_audiences finds the audience that will receive the list.upload_customer_list_to_fb_audience normalises and hashes the values, then uploads them to an existing custom audience.The list reads. upload_customer_list_to_fb_audience writes to the account.
| Tool | What it needs |
|---|---|
| list_fb_audiences | Reads only. Nothing, it reads the active ad account. |
| upload_customer_list_to_fb_audience | Changes the account. The audience ID, as text, a schema naming the columns and the data rows. |
Phones must be a country code plus number with no plus sign or leading zero. Only upload people you have the right to use for ads, under your privacy policy and the law that applies to you.
These steps use Claude. PaidSync.ai also works in ChatGPT, so you can upload a customer list to a Facebook audience there with the same prompts.
Sign up at paidsync.ai, then connect Meta on Meta's own sign-in screen. Have clean data and confirm you may use it for ads.
Add PaidSync.ai from Claude's connector directory and sign in. Ask "list my Facebook ad accounts" and choose the one where you want to upload a customer list to a Facebook audience.
Ask Claude to list audiences, or create a customer list audience first.
Tell Claude which column is email, phone or name so the schema is right.
Read the dry run, then say yes to upload.
Check the audience in the list. Meta takes time to match people and report a size.
Every Meta tool PaidSync.ai offers is on the Meta Ads MCP server page. To grow from it, see how to build a lookalike audience on Facebook with AI.
Give Claude or ChatGPT the audience and the list. PaidSync.ai previews the upload and hashes values before sending.
No. They are normalised and hashed with SHA-256 before they go to Meta.
A country code plus number with no plus sign or leading zero.
Malformed phone, zip or date values are rejected.
PaidSync.ai is free for 15 tasks a month with no card, and you can upload a customer list to a Facebook audience on that plan. Pro starts at $99 a month. See pricing.
PaidSync.ai runs 630+ tools across 14 ad and analytics platforms. Connect your accounts once and use them in the AI assistant you already work in.
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