Meta Description is one of four fields to complete under Product Details.
The meta description appears as a snippet of information in search results (e.g. Google, Bing) under the page title, and provides a snapshot of the page’s contents. A concise, accurate meta description is crucial in order for the target audience to quickly gauge the page’s relevance, and click through to the page.
When a new product is created - a default meta description will generate automatically, however - you may still wish to overwrite it with your own meta description.
Meta Description length
If you’re composing your own description, the optimal length is a maximum 140 characters. Although not critical, longer descriptions may appear cut-off in results, and impair the ability of your audience to quickly gauge the page’s relevance.
Incorporate keywords in your meta description. Consider branded keywords e.g. company name, product range, and model in addition to broader keywords such as those relating to its use-case. However, to avoid search engines flagging the page as spam, use each keyword sparingly.
It is important to ensure the meta description is easily readable. Overly complex or poorly constructed descriptions can deter potential visitors from clicking through to the page.