Get Domain Group ID
Step 1: Go to https://www.cookiebot.com/en/ and Login.
Step 2: Navigate to Domain Tab. Add Domain by clicking on “+” button.
Step 3: Navigate to Dialog tab. Set Template of cookiebar. You can also configure other settings like Method, Page scroll, Type, Checkboxes default mode, etc.
Step 4: Go to the Content tab. Set the content to display in Cookies introduction text for all selected Cookies categories.
Step 5: Switch to Your scripts tab. There you would find the Domain Group ID for your domain.
Configure Domain Group ID in your website
Set this Domain Group ID at TYPO3 constant editor, Check below screenshot