Gmail Promotional Annotations in Email: What It Is and How to Use It

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f your email has a Gmail annotation (hereinafter referred to as GPA), it increases the chance of being featured in the "Best Offers". If your email is not featured in the "Best Offers", it will not display a GPA, even if you designed and laid it out.


The abstract tells the subscriber the most important thing about the promotion


What is needed to create a GPA
Gmail says that Gmail annotations make your emails more likely to appear in Top Suggestions.

GPA makes Boxberry's newsletter stand out from the crowd


But algorithms decide everything . Follow these conditions to make a good GPA:
HTML format.
Mass mailing - there is no exact number of recipients, but the more, the better.
There is a folder called “Promotions” — the user has enabled the division of letters into categories.
Your emails go to "Promotions".
A relevant offer is short, concise, without clickbait and aggressive CTAs. You can add a promo code and the expiration date of the promotion.
A quality image - it should n't be just text, it's not a GIF or a WEBP. Dimensions 138×538 px. A different size image will work, but Gmail will crop it to these dimensions.
Good reputation of ESP.

Example image for GPA


It is not yet possible to measure the mint database effectiveness of GPA. Gmail does not show all emails with annotations to subscribers, but only relevant ones. Therefore, we do not know to whom exactly Gmail shows emails with annotations, and we cannot track how they affected open rates and conversions.