Create Service Account

Step 1: Go to the URL below to create a service account.

https://console.developers.google.com/iam-admin/serviceaccounts

Step 2: Now select your project using either of the options as shown below.

Step 3: Now click on Create Service Account.

Step 4: Add service account details including name, ID, and description. Copy the whole service account ID that you will need later on in the Google Search Console. Then click on Done.

Step 5: Now click on the 3 dots under the Actions tab and select Manage keys.

Step 6: Now click on Add key and Create new key.

Step 7: In the next screen, make sure the key type is selected as JSON, and then click on the Create button. Doing so will automatically download the JSON file on your browser. This JSON file you need to upload in your Magento configuration.