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Posted by on September 21, 2011

Sales impact of ratings request emails


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The four key eCommerce marketing trigger emails are; welcome, transaction confirmation, basket abandoned and ratings/review request. Of course there are other opportunities for trigger emails such as Birthday, back in stock emails, win-back and more, however those first four emails are the key emails to put in place before any others.

Here I’m looking at the ratings and review request email. Social proof ratings and reviews have become essential in eCommerce, Reevoo benchmark the average sales uplift due to reviews at 18%. The natural human instinct is to value the opinion of others. My six year old daughter demonstrated this to me. I’d pulled up a page of Nintendo games for her to look at. A few seconds later she exclaimed how one had four stars and another 284 comments. I hadn’t explained social proof or reviews to her and I’m sure its not something taught at school. She seemed to naturally ‘get it’.

A very effective way to build the necessary ratings and reviews is to send a post purchase request email. When Argos implemented such a practice they found 10% of their customers provided a review. If you consider how many purchases you have then 10% is quickly going to add up to a lot of reviews.

The following charts show two ratings examples are from Reevoo:

Which review would you find more persuasive? If you are like most people it will be the one on the right.

The most interesting point about these two bar charts is that they are for the same product. The only difference was reviews for the chart on the right were proactively requested by means of a post purchase email. By asking there is a difference in not only quantity of reviews but the number of positive reviews.

This difference is easily explained. If not asked for feedback, only the less satisfied customers are likely to make the effort to find out how to make a rating and provide it.

Here are some tips for a good review request email.

  • The reivew request email should be sent a few days after the customer has experienced the product or service. This should be enough time that they have developed their opinion and not so long that the enjoyment of the new purchase has passed.
  • The email subject line and body should reference the item purchased.
  • The copy should be short and clear with a well positioned call to action button.
  • The process to provide review should be quick and easy. A simple star rating could be collected right from within the email using images for each of one to five stars. That’s easy.
  • Avoid clutter that could distract from the review request.
  • Remind the customer of your normal support and service channels. If they are not happy, you will want to know directly rather than have a poor review.

ClickZ recently posted this model for ROI calculation of reviews and user generated content and in the last dotMailer ‘Hitting the Mark’ report only 48% of companies studied sent any sort of post purchase email. There is clearly opportunity for many to improve their bottom line.

Oh, and yes I did end up buying the Nintendo games for my daugther that she picked out from the ratings.





  • Sara Watts www.dmri.co.uk

    Great  post. I agree the star rating / review bit seems to be understood and used by instinct. However in my very limited sample the older the person the more clearly you have to explain what to do to read / understand the reviewing system.  It’s also important for brands to acknowledge the reviews and rating given by consumers, once someone has taken the time to comment this should be acknowledged by the brand/ company and if there is a problem it should be resolved.  Also I was watching the shopping habits of a 16 year old on a fashion site and anything with less than 4 out of 5 stars was getting ignored, even though that in several cases the rubbish star rating was based on 1 or 2 reviews. I guess the point here is that if you get a bad review respond, rectify and quickly email engage with some happy customers to make sure that a fair reflection of the product is shown.

  • http://twitter.com/CaptainInbox Andy T

    One perception that occurs to me is that in ecommerce there are other variables outside of the
    store’s control, like the post for instance; if the postman is a git, or
    the courier is useless this could affect the rating, subsequently where
    possible I would suggest adding a comments box for certain scenarios;

    Much like an NPS survey you can see detractors from the scores and read
    their comments to look for a pattern on where to fix your problems.

    Also for targeting purposes, you could then look to add more sharing
    options for the people scoring you highly, in the knowledge that they
    are fans and more likely to tell their friends, where as you would be
    less inclined to send detractors to your facebook to leave a comment;
    instead work on improving the experience of the detractors to get them
    to be fans.

  • http://b2b.reevoo.com Kat Matfield from Reevoo

    Andy T – you make a great point about service concerns cluttering up the product rating. I work for Reevoo (the source of the score data in this post) and we deal with this problem by asking reviewers to talk first about the product, then secondly about their service experience in a separate section.
    This is great for other consumers, since it means they get ‘clean data’ for product reviews, and can also read reviews purely about retailers’ service. It’s just as good for our retailer partners, who can show their service ratings on their site and during checkout to reduce basket abandonment.

    Tim’s tips for review emails are mostly great but I would suggest that the time between purchase and email should be varied depending on the type of purchase and other factors. 
    For example, you’d get no useful responses if the review email arrived before the delivery! And products that take a long time to get used to/are used rarely will get a much more detailed review (which is better for SEO and more helpful for other shoppers) if you wait a few weeks before soliciting reviews.