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I'm setting up my brand and am not using google analytics or anything else at this time, so I won't be added a string of my own. Should I delete the string that is in this field by default (the sample string), or should I leave it there?
The text field is actually empty. The string in the text field is a 'placeholder' text, it is not a 'value'. You will notice that you can't delete it, because it is a 'placeholder' text.