Google will not allow you to start advertising using Google Shopping until you verify and claim your webstore's URL.
Log into your Google Merchant Center account.
Click Settings - the gear icon towards the top right.
Select Business Information
Select the Website tab at the top.
Follow the instructions (HTML or Alternate method).
Click Verify & Claim.
You will also want to complete the About your business section.
If you need additional help with this, please refer to the step-by-step article below by Google.
โhttps://support.google.com/merchants/answer/176793
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