Why exactly 50
Reviews matter in two places, and the rules differ between them. The first is the business profile on Google Maps, where people review a place or a shop. The second is product ratings in Merchant Center (Product Ratings), where stars appear next to a product in Google search and ads.
For Product Ratings Google sets an entry threshold: the review requirements say you need at least 50 reviews across all your products together, and the data source must be updated at least once a month to stay in the programme. The programme is available in countries where Shopping ads and free listings run; the page does not name Ukraine, so check availability in your own account. Below, 50 reviews is the threshold we count the path to.
What is allowed and what is not
The table brings together three sources: Google Maps' review policy, the Product Ratings rules in Merchant Center, and Ukrainian law. For Maps we read the policy pages on incentivized or biased reviews and rating manipulation, and the Business Profile help on asking for reviews. For Merchant Center, the Product Ratings policies.
✓ — allowed; ≈ — allowed on the condition in the cell, or no rule directly; ✗ — do not. The law column is our summary of the norms in the next section, not their literal requirement. On "only the satisfied": for Google Maps we found no separate clause on selecting whom to ask, so that rating rests on the general rule on rating manipulation and is our own conclusion.
What matters in this table. First, Google's rules do not match each other: what Product Ratings allows with disclosure, Maps bans. An incentive you consider acceptable for product reviews should not be carried over to shop reviews on Maps. Second, in Product Ratings Google requires you to pass on all reviews, including low-star ones, and forbids deleting old ones. So choosing selectively what to show is not possible under the programme's own rules either.
Product Ratings has one more nuance: a review must be honestly solicited from a buyer, and reviews written mainly by an automated programme or an AI application are not allowed and are flagged as spam.
What Ukrainian law says
The current Law "On Consumer Protection" No. 1023-XII (Article 19) bans unfair business practice, including conduct that misleads the consumer, and says the list of such practices is not exhaustive. The Law "On Protection from Unfair Competition" No. 236/96-VR in Article 15-1 defines misleading information as a business, directly or through another person, communicating incomplete, inaccurate or false information, including about the quality and consumer properties of goods. Reviews of product quality given or bought in the name of "buyers" can fall under this; the word "review" does not appear in those two articles, so this is our interpretation, not a direct rule.
Direct rules are in the new Law No. 3153-IX "On Consumer Protection". Article 27(1) lists as misleading commercial practices a claim that reviews of a product are given by consumers who bought or use it without checking that the reviews are genuine (item 26), and promoting a product by getting other persons to spread false reviews or distort other consumers' reviews (item 27). As of 10 November 2026 the law's card shows the status "Coming into force": the law takes effect one year after publication, but not earlier than the day martial law ends or is cancelled (Section IX). So items 26 and 27 do not yet apply, but they show where regulation is heading, and putting "customer reviews" over texts whose origin you have not checked is already risky under the general rule.
How many reviews one request yields
Reviews per month are the product of three numbers: orders, the share of those who received the request, and the share who replied. Nobody can tell you your reply rate; it has to be measured, so below are three values to compare, not a forecast.
A hypothetical case. 300 orders a month, 90% receive the request (the rest are returns or undelivered), and a reply rate of 2%, 5% or 10%. How many months to collect 50 reviews for the Product Ratings threshold? Computed in code:
Assumption: 300 orders a month, the request reaches 90%, all reviews concern products, not the shop overall. Reply rates are hypothetical; Google does not promise reviews appear at once: per its help, 2–4 weeks pass after the first submission.
Two conclusions. First: the difference between 2% and 10% replies is the difference between nine months and two, so the wording and timing of the email matter more than the number of reminders. Second: with fewer than 300 orders the time grows proportionally, and for a shop with 100 orders a month at 5% replies it is more than 11 months. Then it is worth finding another route to the Product Ratings threshold or accepting that stars in search will be absent for a long time.
Why asking only the satisfied distorts the rating
The temptation is simple: send the request only to those without complaints and route the unhappy ones to support. Look at what this does to the average. A hypothetical case: 100 buyers would leave reviews, of which 50 are fives, 25 fours, 10 threes, 5 twos and 10 ones. The average is 4.0. If you exclude from the request those who would give 1 or 2 (15 of them), 85 reviews remain with an average of 4.47. The numbers are hypothetical, but the mechanics are always the same: you cut off the bottom of the distribution and the average rises without any improvement in the product.
For Product Ratings this is also a direct conflict with the rules: the requirement to pass on all reviews, including low ones, means that problem reviews you receive by other routes must reach the feed. What works in practice is different: the same request for all buyers, and, separately, an offer to the unhappy to contact support, in addition to a review and not instead of one.
How to ask for a review
- Where will the request lead?A shop review goes to Maps, a product review to the Product Ratings feed or the product page. One email per type of review, with a direct link
- Do you send it to all buyers?Asking only the satisfied lifts the average without improving the product. Yes → the same email for everyone, the unhappy additionally get a support contact
- Do you offer anything for a review?On Maps it is banned; in Product Ratings only with a flag and no dependence on the rating. Yes → remove for Maps, add is_incentivized_review for the feed
- Do you ask for a specific rating or words?Pressure on the rating is rating manipulation. Yes → remove both the "5 stars" request and template phrases
- Do employees, relatives or AI write reviews?Conflicts of interest and automatically created texts are banned. Yes → remove from reviews shown as buyers'
- Do you reply publicly?Briefly, without promotion or personal data, with a detail from the visit. Yes → reply to each negative review, not a template to all
Our position
Send one email to all buyers after delivery, with a direct link, no discount for a review and no request for a particular rating. For Google Maps this is the only safe option; for Product Ratings a discount for a review is technically possible, but you must disclose it in the feed, which adds hassle without adding trust. Give unhappy buyers a separate route to support.
The position does not apply if reviews are collected by a third-party platform with its own rules: then its terms matter more than ours and must be read separately. It also does not apply if you have too few buyers for the calculation above to make sense: with a few dozen orders a month, stars in search will not appear however you ask, and for now you can ignore the Product Ratings threshold. We covered the emails themselves in the article on mailings for an online shop, and the rules a shop must follow in general in the article on the legal minimum for an online shop.
Checked on 10 November 2026 against Google help pages: the Maps policy on incentivized or biased reviews and on rating manipulation, the Business Profile help on asking for reviews, and the Product Ratings policies and requirements in Merchant Center; and against the texts of Laws No. 1023-XII (Article 19, version of 24.12.2024), No. 236/96-VR (Article 15-1) and No. 3153-IX (Article 27, Section IX, version of 02.03.2026, status "Coming into force") on zakon.rada.gov.ua. This is an overview of the rules, not legal advice; we did not measure reply rates to requests ourselves, and the numbers in the calculations are hypothetical.