TL;DR:
- X auto-renders custom hashflag emojis for sponsored hashtags (e.g., #WorldCup gets a soccer ball emoji).
- Standard Unicode emoji works in tweets, bio, display name.
Custom Hashflags
X allows brands to register hashflag emojis tied to specific hashtags during campaigns. Examples:
- #WorldCup ??” soccer ball.
- #StarWars ??” Star Wars logo.
- #Oscars ??” Oscar statuette.
These show automatically when users include the hashtag.
Standard Emoji
All Unicode emoji work in:
- Tweets (count toward 280 chars; some emoji = 2 chars).
- Bio body (160 char limit).
- Display name (50 char limit).
- Replies / quote tweets.
Key Takeaways
- Custom hashflags = sponsored hashtag emoji.
- Unicode emoji works everywhere on X.
Bio link with emoji-friendly bio
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