og:description is suitable for WhatsApp previews

WhatsApp renders OG previews in a compressed format that truncates og:description at approximately 150 characters. When og:description exceeds 300 characters or buries the key message after the 150-character mark, the message recipient sees a truncated description that ends mid-sentence. WhatsApp does not have its own meta tags — it reads og:description exclusively. Per ogp.me, the description field is the text that contextualizes the link for anyone who receives it in a message. For products shared via messaging (B2C tools, content recommendations, referral links), the WhatsApp preview is often the first impression; a truncated or absent description removes the primary click signal.

Front-load the most important content in og:description within the first 150 characters, and keep total length under 300 characters. This is a content strategy change, not a code change — edit the description strings in your metadata exports or generateMetadata functions.

For dynamic content pages in src/app/, derive descriptions from a summary or excerpt field on the content model, trimmed to 200 characters:

description: post.excerpt?.slice(0, 200) ?? post.title,

This aligns with general og:description best practice and requires no WhatsApp-specific configuration.