Before a marketer can implement sitewide tagging, what’s the first thing they should do?

They should us just the image portion of the JavaScript.
They should turn off auto-tagging in all your Google Ads accounts that are enabled for sitewide tagging.
They should make sure Google Click Identifier (GCLID) still works if using click trackers in the URL.
They should make sure the tag still works by loading it within another tracking tag, like Floodlight.

The correct answer is:

They should make sure the tag still works by loading it within another tracking tag, like Floodlight.

Sources: Google Ads Measurement Certification Assessment Course

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