WhatsApp and Instagram are two dialects of one brand
Instagram is broadcast: people skim, mute, and judge in a second. WhatsApp is dyadic: they expect an answer, a time, a price. Same values, different sentence length. If your grid is “mindful luxury” and your chat is “bro send loc,” you have two brands.
Write both dialects in the same sitting. If a caption cannot be shortened into a Status line without losing the promise, the caption was decoration.
The inbox voice versus the grid voice
Inbox: second person, one question, one next step. Grid: one idea, readable type, no essay. Comments sit in between — public enough to be quoted, short enough to be kind.
A voice chart small Indian teams will actually use
One page: we are / we are not; words we prefer; words we ban; how we greet; how we close; how we handle anger. Laminate it. Put it in the WhatsApp Business greeting. Anything longer becomes a PDF nobody opens — unless you later expand it inside full guidelines.
Include three example replies: booking, complaint, price pushback. Invented examples fail; lift them from last month’s chat.
- Greeting: time-aware, name if known, no “Dear Sir/Madam” on Instagram
- Promise language: only what operations can keep this week
- Refusal: polite, specific, no fake “as per policy” theatre
- Emergency: who is allowed to speak for the company after 9 p.m.
Tone by surface: Status, DMs, captions, comments
Status can be punchy and local. DMs should be slower and clearer. Captions carry the offer; comments carry manners. Do not paste the same 80-word block everywhere — WhatsApp compression and Instagram truncation will punish you.
Code-switching without sounding fake
Tamil-English mix is normal in Chennai commerce. Decide where pure English is required (export buyers, LinkedIn, invoices) and where mix is an asset. Switching randomly inside one DM feels like two people seized the phone.
What to ban: slang, medical claims, discount theatre
Ban unverifiable claims, competitor slurs, and “limited offer” when the offer is not limited. Clinics and finance: extra bans — see professional-service rules in branding for clinics. Festival captions can be warm without screaming 70% off in five fonts — that is a Canva vs kit problem as much as a voice problem.
Voice vs visual kit: they fail separately
A perfect palette with chaotic copy still feels cheap. Perfect copy on rainbow templates still feels amateur. Fix both: identity from ₹25,000, then train SMM. How to brief a branding agency in Chennai should include sample chats, not only competitor logos.
Training staff who already have a “usual reply”
Do not shame the receptionist. Show a side-by-side of last week’s reply and the on-brand version. Run ten minutes after standup twice a week for a month. Then audit monthly. Voice dies when only the founder remembers it.
How Brevia writes voice into a Chennai kit
We lift language from your real chats, not from a “premium yet approachable” generator. Starter kits get a one-pager; Full identity (₹60,000) folds voice into the PDF. SMM and media captions should inherit it. Contact if you only need the voice layer on an existing logo.
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