Type “page layouts” in the quick find box and click on “Page Layouts” under “Leads”.
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Click “Edit” near one of the layouts you want to add GA Connector fields to.
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Drag & drop fields from the menu above until the layout looks like the screenshot below.
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Repeat the process for all layouts you want to add GA Connector fields to.
Until all the users that need to see GA Connector fields can see them.
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