Skip to main content
On first connect the connector automatically registers the Google Cloud project with your Merchant Center account. The OAuth user must be an Admin of the account and the account must have a verified storefront homepage, otherwise the connection test will fail.

​
Find your Merchant Center ID

The Merchant Center ID (sometimes called “Merchant Center Account ID”) is the numeric identifier of the Merchant Center account this connection will operate against. Every API call the connector makes is scoped to this account.

1

Locate the ID

Sign in to Merchant Center and select the target account. The numeric ID appears either:

  • In the top-right account switcher — click the account name and copy the value shown under Merchant Center ID.
  • In the browser URL — https://merchants.google.com/mc/...?a={accountId} (the a= query parameter).

​
Verify your storefront homepage

Google requires the Merchant Center account to have a verified storefront before the connector’s one-time developerRegistration:registerGcp bootstrap can succeed. A missing or unverified storefront causes a 400 HOMEPAGE_NOT_VERIFIED on first connect.

1

Set and verify the storefront

In Merchant Center, open Settings > Business info > Details tab and find the Your online store card on the right. Click Edit online store, enter your storefront URL, and complete one of Google’s verification methods (HTML tag, file upload, Google Analytics, or Google Tag Manager). The card should display both Verified and Claimed badges before you proceed. See the Merchant Center homepage verification guide for details.

1

Connect

  • Click Connect.
  • If applicable, the provider will redirect you to a sign-in or authorization page. Complete the provider’s authorization flow.
  • Once authorization is successful, you will see a confirmation popup.
2

Use Actions

Connect an AI platform to the linked account’s actions. See AI Platforms.Other ways to call actions are listed in Protocols & SDKs.

​
Next Steps

Webhooks setup

Configure receiving Events for Google Shopping into StackOne.