WHATSAPP FOR PROFESSIONAL SERVICES

Client intake, bookings, and invoice follow-ups on the app clients actually open.

B2B invoices take 50–60 days to clear and more than half are paid late (Upflow, 2024) — while consultation no-shows quietly burn billable hours. WhatsMark runs structured intake, books consultations on a real calendar, collects documents in-chat, and chases invoices for you — on the official Meta Cloud API, at 0% markup.

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app.whatsmark.io/bookings
Consultations

Upcoming

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10:00 Karan — Discovery call13:00 Anjali — Tax review
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09:30 Rohan — Discovery call15:00 Isha — Follow-up
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Start on WhatsApp, expand when you are ready

Built for WhatsApp first — Messenger and Instagram when you need them.

WhatsMark runs your marketing, sales, and support on WhatsApp today. Add Messenger and Instagram to the same shared inbox and automations whenever you want — no new tool, no re-platforming.

WhatsApp
WhatsApp

Broadcasts, chatbots, templates, and a shared team inbox — on the official Cloud API.

Live
Facebook Messenger
Messenger

Campaigns, instant templates, and automation straight from your Facebook Page.

Live
Instagram
Instagram

DM automation and campaigns for Instagram — landing soon.

Coming soon

Sound familiar?

Three things every D2C team already lives with

Document collection takes a week of email tag

The advisor needs PAN, ITR, and bank statements. Three rounds of email later, two of the four documents are missing. The client gives up before they start.

Consultation no-shows kill billable hours

Half the discovery calls book and never show. The 30-minute slot is gone, the partner's calendar is gridlocked, the lead is cold.

Invoice follow-ups feel awkward and get ignored

Email reminders sound robotic; phone calls feel pushy. So invoices sit — B2B days-to-pay averages 50–60 days and 55% are paid late (Upflow, 2024) — while your cash flow waits for someone to chase each one by hand.

The four pieces

What you actually need to run WhatsApp marketing at scale

Structured intake in one thread

A WhatsApp Flow asks your intake questions — entity type, scope, fiscal year — and the Ask Media step collects PAN, statements, and agreements as files up to 100 MB each. Everything saves to the contact before the first call, no email tag.

Consultations booked on a real calendar

WhatsMark's built-in appointment booking shows genuinely open slots inside the chat — your business hours, slot length, and capacity all respected — and clients reschedule or cancel with a tap. No double-booking, no back-and-forth.

Invoices that chase themselves

A scheduled follow-up sequence sends a polite reminder at 7, 14, and 30 days, each carrying a payment link from your own gateway. Reminders land on a channel with ~98% open rates instead of an ignored inbox.

One number, one shared inbox

Keep your firm's existing number with Coexistence, and let associates, partners, and ops share a single real-time inbox — assign a thread, add private notes, hand off mid-conversation, and the client still sees one seamless chat.

Scenario 01 / Client intake

Run a structured intake in one WhatsApp thread — not three rounds of email.

A new client messages your firm. A WhatsApp Flow asks the structured questions you'd ask in your intake form (entity type, scope, fiscal year, prior advisor) and accepts file attachments inline. Answers and files save to the contact's profile and surface to the partner before the first call.

  • WhatsApp Flow handles structured intake (radio, checkbox, file upload)
  • Files attach in-chat via Ask Media (up to 100 MB) and save to the contact
  • Branch logic by service type (tax, audit, consulting, recruitment)
  • Push intake data to your CRM via WhatsMark's REST API and webhooks
9:41
WhatsMark
WhatsMark.io

online

Hi, we need help with our FY audit

9:40 AM

Welcome to Halo & Co. — a quick intake first. What entity type is this for?

Private Ltd
LLP
Proprietorship

9:40 AM ✓✓

Private Ltd

9:41 AM

Great. Please share your PAN, last-year ITR, and Apr–Mar bank statements. You can attach them right here (up to 100 MB each).

Upload documents

9:41 AM ✓✓

[Sent 3 files]

9:46 AM

✅ All saved to your profile. Your partner will review before the first call.

9:46 AM ✓✓

Scenario 02 / Consultation booking

Book discovery calls that the client actually shows up to.

WhatsMark's built-in appointment system shows real open slots inside WhatsApp — respecting your business hours, slot length, and capacity — so the client books in a couple of taps and can't double-book. Reschedules are one tap and the freed slot reopens automatically. Turn on a pre-call reminder, and the partner walks in with the full intake history.

  • Real available slots shown natively in WhatsApp — no external link
  • Reschedule or cancel in a tap; the slot reopens automatically
  • Turn on a pre-call reminder so fewer clients forget
  • Full intake history visible to the partner before the call
9:41
WhatsMark
WhatsMark.io

online

📅 Halo Legal — discovery call slots Pick a time that works for you:

Today 4 PM
Fri 11 AM
Mon 3 PM

2:15 PM ✓✓

Fri 11 AM

2:18 PM

✅ Discovery call confirmed — Fri, 11:00 AM IST 💼 Topic: Trademark filing 👤 Partner: Adv. Mehta 💻 meet.google.com/abc-defg-hij

2:18 PM ✓✓

⏰ Reminder — discovery call in 1 hour (11:00 AM IST). Joining link: meet.google.com/abc-defg-hij

Confirmed
Reschedule

Fri 10:00 AM ✓✓

Scenario 03 / Invoice follow-ups

Get invoices paid without the awkward phone call .

B2B invoices average 50–60 days to clear and 55% are paid late (Upflow, 2024). A scheduled follow-up sequence sends a friendly nudge at 7, 14, and 30 days — each carrying a payment link generated by your own gateway — on a channel people actually read. When a client has a question, they just reply, and it lands in your shared inbox for an account manager to pick up.

  • Scheduled reminder Sequence at 7, 14, and 30 days — set once
  • Payment link pulled from your own gateway into the message
  • Replies land in the shared inbox for your account manager
  • Automated reminders cut days-to-pay by 12–18 days (Upflow, 2024)
9:41
WhatsMark
WhatsMark.io

online

Hi Anjali — gentle reminder on invoice INV-2451 (₹78,000). It was due 14 days ago. Tap below to settle it in a few seconds.

Pay Now
Talk to Account Manager

10:00 AM ✓✓

Can you resend the invoice copy?

10:11 AM

Of course — sharing the PDF now, along with your secure payment link.

10:11 AM ✓✓

Got it, paying now

10:14 AM

✅ Payment received — thank you! Receipt is on its way to your email. 🙏

10:15 AM ✓✓

What your customers see

Sample messages for service firms and agencies

Real WhatsApp threads — drop them straight into your account or use them as starting templates.

ITR-filing intake
9:41
WhatsMark
WhatsMark.io

online

Need help filing my ITR

11:05 AM

Welcome — quick 90-second intake first. Income type?

Salary
Business
Both

11:05 AM ✓✓

Both

11:06 AM

Got it. Please share: 1. PAN card 2. Form 16 (if salary) 3. Bank statements Apr–Mar You can attach them right here.

How to find Form 16
Skip for now

11:06 AM ✓✓

[Sent 3 files]

11:10 AM

Consultation reminder (T-1h)
9:41
WhatsMark
WhatsMark.io

online

Reminder — discovery call in 1 hour. 📅 Today, 4:00 PM IST 💼 Topic: Trademark filing 💻 Google Meet: meet.google.com/abc-defg-hij Partner: Adv. Mehta

Confirmed
Reschedule

3:00 PM ✓✓

Confirmed

3:04 PM

✅ See you in 1 hour. Joining link works 5 minutes before start.

3:05 PM ✓✓

Invoice reminder (T+14d)
9:41
WhatsMark
WhatsMark.io

online

Hi Anjali — gentle reminder on invoice INV-2451 (₹78,000). Due 14 days ago. Do let us know if there's anything pending on our side.

Pay Now
Talk to Account Manager

10:00 AM ✓✓

Pay Now

10:12 AM

Opening secure payment link… processing.

10:12 AM ✓✓

✅ Payment received. Receipt sent to your email. Thank you. 🙏

10:13 AM ✓✓

Integrations

Plays well with what you already use

Connect natively where we have direct adapters. Use webhooks or our REST API for everything else. Honest status flags — we don't pretend an integration ships when it doesn't.

Go

Google Calendar

Scheduling & availability

Available
Go

Google Sheets

Log intake & client data

Available
Zo

Zoho CRM

CRM — via API / webhook

Via API / Webhook
Hu

HubSpot

CRM — via API / webhook

Via API / Webhook
An

Any CRM or accounting tool

via REST API / webhook

Via API / Webhook

By the numbers

Specific, defensible, no fabricated stats.

B2B invoices paid late

55%

US average — automation gets ahead of it (Upflow, 2024)

Faster payment

12–18 days

Automated reminders vs chasing by hand (Upflow, 2024)

WhatsApp open rate

~98%

vs ~20% on email — reminders actually get seen

FAQ

Common questions, honest answers

Don't see your question? Email me at mailto:[email protected] — I read and answer every one personally.

The WhatsApp Cloud API encrypts traffic in transit between Meta and your server, and every conversation lives against a contact record with a full audit trail rather than on someone's personal phone. For genuinely sensitive material — signed agreements, financial statements, KYC — the recommended pattern is a short-lived secure link to a file in your own store rather than the raw attachment. If your firm has specific compliance obligations, we can share our security architecture for review.

Yes — the Ask Media step in a flow prompts the client to send a file (PDF up to 100 MB, images, and other types), validates it, and saves it against their contact record automatically. That turns a week of email tag into a couple of taps. Note: WhatsMark stores the file — it doesn't read, verify, or extract data from it; a human still reviews what comes in.

You can connect up to 2 WhatsApp numbers on Free, 10 on Professional, and unlimited on Reseller, all from one workspace, with named team inboxes to keep each brand's conversations separate. To set expectations honestly: today these run inside a single workspace, not fully isolated white-label sub-accounts per client — that broader reseller capability is on the roadmap, not shipped.

You can drop a payment link into the message so the client pays without leaving the chat — but the link is generated by your own payment gateway (called from a flow step via API Request), not created by WhatsMark. WhatsMark sends the reminder and the link and captures the reply; your gateway handles the actual payment and reconciliation.

Through our REST API and webhooks — there is no bespoke one-click CRM connector today. Your CRM (Zoho, HubSpot, or a custom system) calls WhatsMark's API to trigger sends, and WhatsMark forwards events (incoming messages, intake completions, document uploads) to your CRM across 30 Meta event types. Most modern CRMs, or a Zapier/Make bridge, handle this without custom code.

Yes. The shared inbox supports assignment, transfer, and private internal notes. An associate runs intake, the partner takes the consultation, an ops person chases documents — each handoff is logged, and the client still sees a single seamless thread.

The Business App is one phone, one user, manual replies. WhatsMark runs on the WhatsApp Cloud API: a shared multi-partner inbox, automated intake and booking flows, in-chat document collection, invoice-reminder sequences, a REST API, and role-based access. The moment more than one professional is handling client work, the app stops scaling — and Coexistence lets you move up without changing your number.

Right at the line where judgement begins. Automation should own the unbillable friction around the work — booking the consultation, sending the intake form, chasing the documents the client hasn't uploaded, reminding them an invoice is due. None of that is advice; it's the admin that eats associate hours and delays the engagement. The counsel, the analysis, the relationship stay entirely human. Done this way, automation gets clients to the billable conversation faster and frees your people to spend their time on it.

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