Linkubit
Open the demo
Conversations

Shared inbox for WhatsApp, email, Instagram and Messenger

Every contact keeps a single timeline regardless of which channel they arrived on. Ownership, SLA timers, collision detection, and a handover between the agent and a person that is explicit in both directions.

In short

Linkubit puts WhatsApp, email, Instagram DM and Facebook Messenger in one shared inbox. An AI assistant answers first, qualifies the customer and hands the conversation to a person explicitly; the person hands it back the same way. Every thread has an owner, a waiting time and a warning when two people open it at once.

WhatsApp, taken seriously

The 24-hour window is a first-class concept

WhatsApp only allows free-form replies inside the window a contact opens. Outside it, the composer offers approved templates and nothing else — you find out before you type, not after Meta rejects the send.

  • Window state is visible on the conversation itself
  • Templates are the ones Meta has already approved, nothing else
Arjun DeshpandeWAWhatsApp
Window closed 2h ago
Thanks, will check with my partner and come back to you.

Last inbound message · yesterday, 6:12 pm

Free-form replies are locked — send an approved template

Quote follow-upRate confirmationDocument request

Human and agent, explicit in both directions

Takeover, and explicit return

A rep takes over and the agent stops. It resumes only when handed back deliberately — never on its own, mid-negotiation, because a timer expired.

  • Who is driving is always visible on the thread
  • Internal notes travel with the conversation, invisible to the contact
Meera KulkarniWAWhatsApp
Human
We run that lane weekly. Roughly how many containers a month are you moving?

Sales Agent

Around 24 TEU, starting next month

Internal note · good running volume, taking this one — Rohan

Rohan here from pricing — USD 780 all-in per 40'HC, weekly direct. Can hold it 14 days.

Rohan · took over

Agent paused. It resumes only when Rohan hands the conversation back.

The rest of the inbox

Collision detection without websockets

A presence write when a conversation opens, read back on the poll. Two reps answering the same person is the failure this exists to prevent.

Hindi and voice notes

Voice notes are transcribed, and Devanagari renders properly rather than as a row of boxes. For the Indian market this is table stakes, not a feature.

Internal notes

Context for colleagues, never visible to the contact, interleaved into the thread where it happened.

Messages are append-only

No edit, no delete. Corrections are new messages, so the record of what was actually said stays intact.

ST
Sai Tradersnow
Two pallets to Chennai by Friday?
WhatsApp
MK
Meera K.2m
Is the 3BHK still available?
Instagram
RV
Rahul Verma9m
Re: quotation for 40 seats
Email
AD
Anita D.14m
Do you deliver to Pune?
Messenger
One person, one record — whichever channel they wrote on.
Guide · 6 min · Updated 18 September 2026One inbox for WhatsApp, Instagram DMs, Messenger and email: how a small team answers every channel without missing oneCustomers write on four channels and expect one conversation. What a shared inbox has to do — ownership, the 24-hour window, handover, collision — and what Meta's rules mean for Instagram and Messenger.
Customer wrote · Tue 10:12
window open
Tue 10:12Wed 10:12
Inside 24 hoursAny message, in your own words.
After it closesOnly an approved template, at Meta’s rate.
Guide · 6 min · Updated 19 September 2026The WhatsApp 24-hour customer service window, explained: what you can send, what it costs, and how to sell inside itInside the window any message, free-form — charged per reply since 1 October 2026; outside it a template, charged. The 72-hour free entry point from Click-to-WhatsApp ads, what resets the clock, and five ways the rule should change how you sell.
Instagram
DM · replies only, inside 24 hours
Is the linen shirt in the reel available in M?
It is — ₹2,450, in sage and white. Shall I hold one in M for you?Agent
No broadcasts, no templates, no first message from the business — Meta’s rule, enforced here.
Guide · 5 min · Updated 19 September 2026Instagram DM automation for business: what Meta allows, the 24-hour and human-agent windows, the 1,000-byte limit, and what gets accounts restrictedReplies only — no business-initiated messages, no broadcasts, no templates. 24 hours for any reply, seven days for a human-written one, 1,000 bytes per message. What to automate, what to avoid, and how to move a conversation to WhatsApp with consent.
GrowthWhatsApp and email campaigns, audiences and paid mediaAudiences built from your own customer graph, sequences that stop the moment someone replies, and Meta and Google ad accounts read in, attributed, and used to build paused campaigns.SalesLead qualification, scoring and pipelineThe questions a deal must answer, asked by the assistant and written onto the record; a lifecycle whose stages refuse illegal moves; scoring you can read rule by rule.IntelligenceAttribution from ad spend to revenueCost per qualified lead rather than cost per form fill: revenue traced over the contact's own timeline from the first ad click, and frozen at the close.ControlRules, knowledge and approvals for an AI agentThe agent answers from what you gave it, follows rules enforced in code rather than in a prompt, and asks a person before anything that spends money.Freight & logisticsWhatsApp automation for freight forwarders and transportersFreight qualifies on route, mode, commodity, volume and timeline — no product catalogue needed. A rate request answered in a minute is one somebody else does not get.Commercial propertyWhatsApp CRM for real estate and commercial propertyProperty qualifies on requirement, location, size, budget and timeline, books the site visit, and follows up until the enquiry is a deal or a no.Residential real estateWhatsApp CRM for real estate agents and developers in IndiaA home enquiry answered in a minute, qualified on configuration, budget, locality and move-in date, shortlisted, visited and followed up until it books — on WhatsApp, with the papers in the thread.Education & coachingWhatsApp automation for coaching institutes, schools and edtechA course enquiry answered in a minute, qualified on class, exam, mode and budget, sent the fee card, booked into a demo, admitted with the papers in the thread and reminded of every instalment.Clinics & healthcareWhatsApp appointment booking and reminders for clinics in IndiaAppointment enquiries answered in a minute, slots offered, confirmations and reminders that ask for a YES, estimates from your price list, reports on request and balances collected — with no clinical advice from the assistant, ever.D2C & e-commerceWhatsApp AI sales agent for D2C brands and online stores in IndiaProduct questions answered from your catalogue in a minute, sizes and delivery confirmed, COD orders confirmed before they ship, orders tracked in the thread, and a UPI payment taken in the chat.Travel agenciesWhatsApp automation for travel agencies and tour operators in IndiaA trip enquiry answered in a minute, qualified on dates, travellers and budget, quoted from your packages with a validity date, booked with the papers in the thread, and reminded of the balance and the departure.Car & bike dealersWhatsApp CRM for car and two-wheeler dealerships in IndiaA vehicle enquiry answered in a minute, qualified on model, variant, budget and timeline, quoted on-road from your price list, booked into a test drive, and followed through finance, delivery and the first service.Loan & insurance agentsWhatsApp automation for loan and insurance agents in IndiaA loan or policy enquiry answered in a minute, qualified on amount, income, city and tenure before anyone quotes an EMI, the document checklist sent and chased, the sanction and the renewal reminded — with no advice given by the assistant.Solar & home improvementWhatsApp automation for solar installers and home improvement contractorsA rooftop or renovation enquiry answered in a minute, qualified on the roof, the bill, the property and the timeline, a site survey booked and reminded, a proposal sent with the price in the text, and the milestone payments reminded until the job is done.Interior designers & architectsWhatsApp automation for interior designers and architects in IndiaA project enquiry answered in a minute, qualified on the property, the scope, the budget and the timeline before a per-square-foot figure is mentioned, the site measurement booked, the proposal sent with the price in the text, and the milestones reminded.JewellersWhatsApp automation for jewellers and jewellery showrooms in IndiaA design enquiry answered in a minute with the picture from your catalogue, weight and making charges quoted from the list and never the day's rate guessed, the showroom visit booked, the custom order tracked and the balance reminded — on WhatsApp, with the invoice in the thread.Salons & spasWhatsApp appointment booking for salons and spas in IndiaA salon enquiry answered in a minute, the service and the stylist chosen, a time agreed inside your hours, two reminders that ask for a YES, a no-show turned into a rebooking, and the next appointment reminded when it is due — on WhatsApp.Gyms & fitness studiosWhatsApp automation for gyms, yoga and fitness studios in IndiaA membership enquiry answered in a minute, qualified on goal, timing and plan, a free trial booked and reminded, the membership paid in the chat at the listed price, and the renewal reminded before it lapses — with a person brought in for anything medical.Hotels & resortsWhatsApp automation for hotels, resorts and homestays in IndiaA room enquiry answered in a minute, qualified on dates, guests and room type, quoted from your rate sheet with the number in the text, booked with an advance paid in the chat, and the arrival details sent the day before — with the group and event enquiries handed to a person.Restaurants & cloud kitchensWhatsApp ordering and reservations for restaurants and cloud kitchensOrders taken from your menu on WhatsApp at listed prices, paid by UPI in the chat, confirmed and updated until they leave the kitchen, tables reserved and reminded, and catering enquiries qualified on date, guests and budget before a person quotes.Home services & repairsWhatsApp booking for home services, repairs and AMC providersA repair or service enquiry answered in a minute, the problem and the address captured, a visit window agreed inside your working hours, the technician's arrival announced, the job priced from your rate card and paid in the chat, and the AMC reminded when it is due.Event & wedding plannersWhatsApp automation for event planners, wedding vendors and venuesA wedding or event enquiry answered in a minute, qualified on date, city, guests, services and budget before a person quotes, the date checked against the booked dates you keep, the venue visit booked, the proposal sent with the number in the text, and the advance and balance reminded.Manufacturers & B2B suppliersWhatsApp automation for manufacturers, wholesalers and B2B suppliersAn RFQ from IndiaMART or a WhatsApp forward answered in a minute, qualified on specification, quantity, delivery and GST before anyone prices it, the quote sent with the number in the text, the order confirmed with a proforma, and dispatch updated in the same thread.IT services, SaaS & agenciesWhatsApp automation for IT services, SaaS and marketing agenciesA project or demo enquiry answered in a minute, qualified on scope, budget, timeline and decision-maker before a call is booked, the discovery call scheduled and reminded, the proposal followed up on a schedule that stops when the client replies, and the kickoff details sent when it signs.CA, legal & consulting firmsWhatsApp automation for CA firms, lawyers and consultants in IndiaA client enquiry answered in a minute, qualified on the matter, the entity and the urgency before a consultation is booked, the document list sent and chased, filing and compliance deadlines reminded, and the fee collected in the chat — with no advice given by the assistant.Retail storesWhatsApp automation for retail stores and showrooms in IndiaA "do you have this?" answered in a minute from your catalogue with the picture and the listed price, the item reserved for pickup or ordered for delivery, paid in the chat or confirmed with a YES, and the customer told when it is ready — for a single store or a chain.

Ready to put your sales on autopilot?

Start free

No coding required. No credit card required.