To facilitate shopping campaigns, a Backpack account needs to be linked to a Google Merchant Center (GMC) account that is both verified and claimed. This means:

• Verify: Prove to Google that the customer is authorized by the website owner

• Claim: Enable the GMC account to advertise on behalf of the website

How to Link an Account to Google Merchant Center

1. If you haven't already done so, create a GMC account for each account's website. Customer or account admins can create accounts on the Google for Retail website, or Fluency's Engineering Team can set up multiple GMC accounts for a customer (check with your Advertising Engineer to arrange this).

Important:

1. • GMC accounts can be grouped under a multi-client MCA account for administrative convenience.

   • Only one active GMC account can exist per website—if one already exists, we need to either use it or replace it.

2. Grant Backpack access to your GMC account(s) by following the Google Merchant Center OAuth flow. Note: Make sure to sign in to Google as a user with admin access to the customer's GMC accounts.

3. Link the GMC account(s) to the appropriate Backpack account(s):

   • Option #1: Enable Google Merchant Center Account Auto-Linking under Other Settings (runs hourly).

   • Option #2: Manually link the GMC accounts via the Google Merchant Center Status column. Note: The website configured in the GMC account should match the Backpack account's primary domain.

4. Verify and claim the GMC accounts' websites, if needed. Do this if you see Incomplete in the account's settings and notifications under System Info & Alerts > Linked Accounts. Click the Backpack link to the GMC website settings page and follow the steps to verify and claim a website.

Notes:

4. • There are four verification methods available; some may require assistance by the account admin.

   • If the customer is an admin of multiple account websites, Fluency may be able to integrate verification tokens into all account websites (assistance from our Engineering Team is required).

   • If changes are made to a GMC account, Backpack will auto-detect them each night. To force-refresh our status, click the Refresh Config Data button.