Crystallising...
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Writing for the small spaces
By Crystal Song
Aug 17, 2026
Push notifications, WhatsApp and in-app messages are read in the time it takes to swipe them away. Writing them well comes down to the littlest details.
UX writers call it microcopy: the words in an interface small enough to miss yet important enough that someone measures whether they work.
My team writes long and short form copy. Publications that run past 200 pages, to push notifications that have to work in 28 characters and an emoji. It did not take us long in this business to learn that charging by the word is a bad idea. Fewer words take more effort.
The maths has always added up this way. Even Blaise Pascal (yes, the triangle guy) knew it, ending one of his 1656 letters with an apology for its length:
“I have made this letter longer only because I have not had the leisure to make it shorter.”
Length is the default state of a draft. Precision and brevity are what you pay time for.
A good portion of what we do sits at the short end. It is the first work I give to train junior writers and the copy I most often send back for rewrites. You can see at once whether a writer knows what the message is, who they are talking to and if they can rank ideas.
Short copy gets read sideways, on a lock screen, by someone walking to the MRT. Every word is either working or it’s in the way.
I think the best way to illustrate this is to show an example that takes you from the before to the after of an edit for a push notification, an unprompted message sent by the server that the reader did not ask for. Here goes.
The Brief
20% off Mother’s Day bouquets, orders close Fri 8 May, Sunday delivery slots are limited.
Header: 30 characters · Body: 90 characters · Channel: Push Notification Service
The Draft
| Field | Copy | Characters |
|---|---|---|
| HEADER | FINAL DAYS FOR MOTHER’S DAY | 27 |
| BODY | Last call! Our ready-to-collect bouquets are available before the big day ends. 💐 | 82 |
Each edit is one of four moves
Cut, rename, replace or move.
What happened to each piece
| Original | Move | Result | Chars | Why |
|---|---|---|---|---|
| FINAL DAYS FOR MOTHER’S DAY | RENAME | 20% off Mother’s Day blooms | 27 | Named the day, not the deal. |
| Last call! | CUT | – | −11 | Urgency you made up. The real one is in the brief. |
| ready-to-collect | CUT | – | −17 | Redundant. Of course they’re ready for a shopper. |
| before the big day ends. | REPLACE | by Fri 8 May | 12 | A real date beats a feeling of urgency. |
| 💐 | MOVE | into header | 2 | Emoji set an unspoken tone. Test it out. |
The Fix
| Field | Copy | Chars |
|---|---|---|
| HEADER | 20% off Mother’s Day blooms 💐 | 30 |
| BODY | Be the favourite child. Sunday slots go fast, order by Fri 8 May, in-app. | 73 |
What the reader gets that they did not before
| Phrase | Why |
|---|---|
| Be the favourite child. | The added wit is an opportunity to be endearing especially around a day like this. |
| Sunday slots go fast. | Sets true urgency better than “Last call!” |
| by Fri 8 May | A deadline the target can act on. |
| in-app | Where to get it. The draft didn’t say. |
We started with a draft that, in many ways, just said the day was ending. And we ended up with an edit that says the what, why, when and where.
Every channel requires a different touch
A push notification is an interruption someone can switch off in two taps, so it earns its place in the first four words.
WhatsApp messages will appear between the reader’s mother and their group chat, so it should sound like a friend.
Member channels are talking to people who already said yes, so they can afford to take their time.
In-app messages are the only ones that do not interrupt. The reader opened the app themselves, which buys you a little more room.
Across all channels, your brand voice should stay consistent while keeping the tone calibrated to how much patience your target audience will give you.
Writing Short Copy: Guidelines to keep things tight
- Keep the words that are working. Delete the rest.
- Say it once. Two different words can mean the same thing. Copy should add to the headline. Do not repeat.
- Lead with the offer. Unless you have strong reasons to tease, get to the point.
- Write the way your reader talks, if the brand can carry it.
- Don’t be vague. Give a deadline or a call to action to create urgency.
- Always leave a route. Be clear about what you want the reader to do next.
- On push notifications, an emoji is not decoration. Costing two characters, use it to set the tone.
- Read it out loud. If it does not sound like something a person would say, rework it.
- Turn on the Feels. Turn a reader into a believer in one pass. “20% off” is a reason to buy. “Be the favourite child” is the warm and knowing hug.
Emojis are not always loved
A study found push notifications with emojis got 85% more opens, across 2.6 billion messages.1 Another found the opposite on email; emojis grabbed attention but read as annoying and less trustworthy, with no real lift in opens.2
For my team, I always say: Don’t give clients back something they could have written themselves.
If you have a draft of short copy that you would like feedback on, send it over.
