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How to Upload a Customer Match List in Google Ads With AI

Founder written
Author: Ahmed Ashraf|4 min read|Updated October 24, 2026
$1B+ ad revenue generated $500M+ managed Ex-Scandiweb paid media lead 630+ MCP tools

To upload a customer match list in Google Ads with Claude or ChatGPT, connect your Google Ads account to PaidSync.ai and ask the assistant to upload customer emails and phone numbers to a customer match list, which Google hashes before it matches them to accounts. The upload goes to a CRM-based list you create first. Emails are hashed with SHA256 before they are sent, and the call previews first.

Which Tools Do the Work

Customer Match lets you target people you already know, such as your newsletter subscribers. It takes a list and an upload, in that order:

list_user_lists only reads your account. create_user_list and upload_customer_match_list change it.

How the Workflow Is Built

ToolWhat it does
create_user_listCreates the CRM-based list to upload into
upload_customer_match_listSends the hashed customer data to the list
list_user_listsFinds the resource name of the list

Phone numbers must be in E.164 format, such as +34911234567. Only upload data you have the right to use, because your privacy notice and consent rules apply to uploaded customer data. Google also needs enough matched members before a list can serve.

How to Upload a Customer Match List in Google Ads With Claude in 5 Steps

These steps use Claude to upload a customer match list. PaidSync.ai also works in ChatGPT, and the prompts are the same.

1

Connect Google Ads to PaidSync.ai

Register at paidsync.ai and connect Google Ads with Google's own sign-in screen. It needs no developer token and no Google Cloud project. Pick the Google login that manages the account you will upload a customer match list in.

2

Add PaidSync.ai to Claude

Add PaidSync.ai from Claude's connector directory and sign in. Ask "list my Google Ads accounts" and choose the one to upload a customer match list in.

3

Create a CRM-based list

Ask the assistant to create a user list of type CRM_BASED with a name such as Newsletter Subscribers.

4

Prepare the data

Gather emails or phone numbers you may lawfully use. Put phone numbers in E.164 format.

5

Upload

Give the assistant the list and the data. It runs upload_customer_match_list as a preview and then, once you approve, sends the hashed data.

How to Check the Result

List the user lists later and check the size. Google needs time to match records, so a fresh list can show as small or empty for a while.

Use these two prompts to upload a customer match list, in this order.

"Create a CRM-based user list called Newsletter Subscribers."
Comes back as a preview before it is applied.
"Upload the emails from my pasted list to the Newsletter Subscribers customer match list."
Comes back as a preview before it is applied.

How PaidSync.ai Protects You

Every Google Ads tool PaidSync.ai offers is on the Google Ads MCP server page, including the tools used to upload a customer match list.

Frequently Asked Questions

How do I upload a customer match list in Google Ads?

In Google Ads, create a customer list segment and upload a file of emails or phone numbers. With PaidSync.ai, ask Claude or ChatGPT to create the list and upload your data, and it previews the upload first.

Is customer data sent in plain text?

No. The tool hashes emails and phone numbers with SHA256 before upload, as its own description states.

Can ChatGPT upload a customer match list in Google Ads?

Yes. PaidSync.ai connects Google Ads to ChatGPT and to Claude, and the same tools run in both, so you can ask it to upload a customer match list the same way you would in Claude.

What do I need before I upload a customer match list?

A connected Google Ads account, a CRM-based user list, and emails or phone numbers in E.164 format that you have the right to use.

How much does it cost?

PaidSync.ai is free for 15 tasks a month with no card, enough to upload a customer match list and see the result. Pro starts at $99 a month. See pricing.

How to Create a Remarketing List in Google Ads With AI→ How to Add Audiences to a Campaign in Google Ads With AI→ Is It Safe to Connect ChatGPT to Google Ads?→ Google Ads MCP Server with Full Write Access→

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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