If you need to change the number of days after checkout that your customers receive the follow-up email requesting a review, you can do so by going to Setup> Seller Ratings and changing the number here:

(Please note that this email must go out within 90 days of purchase to stay in compliance with Google's policy).

To change the follow-up date for one specific order, please see here:

To edit the text of the email, please see here.

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