For e-shop reviews, the note “This e-shop does not currently provide data for reviews from verified customers” is displayed. What does this information mean?

The standard conversion code sent does not contain data on the basis of which we could contact the customer to evaluate the e-shop. Any customer can give a rating, regardless of whether they have actually made a purchase from the e-shop. We recommend that you make full use of the standard measurement code and also submit recommended information.