SPA · CUSTOMER AUTOMATION
Instant GST‑compliant billing and booking confirmations for Ganesh Chaturthi spa sessions
Get instant GST‑compliant invoices and WhatsApp booking confirmations for festive spa sessions with Ferbz’s fast billing feature.
9 MIN READ · FERBZ · SEPTEMBER 2026
What This Is
Ferbz’s Billing + Appointments workflow delivers instant, GST‑compliant invoicing and automated WhatsApp booking confirmations for spa and wellness centres. When a client walks in, books a “Ganesh Chaturthi Special” massage, or when a therapist creates a package sale from the front‑desk, the staff simply selects New Sale under the Billing module, ties the transaction to an existing Client profile, and clicks Checkout. Ferbz instantly generates a PDF receipt that includes the correct 18 % GST rate (or, if the business qualifies, a composition‑scheme rate) and stores a shareable link in the client’s history. The moment the receipt is generated, the Appointment reminder clock starts automatically.
The moment a booking is saved, Ferbz’s Appointments calendar pushes an official WhatsApp Business API confirmation to the client’s mobile number. No personal‑number hacks, no QR‑code scanning – the message is sent through Gupshup’s approved WhatsApp Business channel, guaranteeing delivery, read receipts, and compliance with WhatsApp policies.
Because the receipt link and the WhatsApp confirmation are created in the same transaction, the spa owner gets a single source of truth for revenue, GST reporting, and client communication. The Reminders board shows the status of the confirmation (sent, delivered, read) alongside any follow‑up reminders that may be part of an automation journey (e.g., “Your Ganesh Chaturthi package expires in 3 days – rebook now”).
All of these actions draw from Ferbz’s prepaid credit wallet, so the spa pays only for the messages it sends – 1 credit per WhatsApp confirmation, 1 credit per reminder, and 1 credit per broadcast. There is no monthly subscription to manage, and the credit balance is visible in real time on the dashboard.
In short, the Billing + Appointments capability gives Indian spa owners a fast, GST‑aware way to bill for festive‑season services, automatically confirm bookings on WhatsApp, and trigger any follow‑up reminders without leaving a single dashboard.
How Spas and Wellness Centres Owners Use It
Below is a step‑by‑step walk‑through that you could follow while recording a screen‑capture of the Ferbz dashboard. The example uses a fictional boutique spa in Pune called Shanti Bliss Spa that is running a “Ganesh Chaturthi 30‑minute Aromatherapy Massage” for ₹2,500 (inclusive of 18 % GST).
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Log in to the Ferbz dashboard
Open https://dashboard.ferbz.com/ and enter your credentials. The home screen shows the main navigation bar on the left: Dashboard, Billing, Clients, Appointments, Therapists, Automation, Broadcasts, Reminders, Reports. -
Create or locate the client
- Click Clients → All Clients.
- Use the search bar to find “Rohit Mehta”. If he is a new visitor, click Import CSV to bulk‑load his details or click Add Client to enter his name, mobile number (with country code +91), email, and GSTIN (if applicable).
- Once the profile opens, you see tabs for History, Bookings, Reminders, and Documents.
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Start a new billing transaction
- From the left menu, select Billing → New Sale.
- In the Client dropdown, select “Rohit Mehta”. Ferbz auto‑populates his contact details.
- Under Items, click Add Item and choose Service → Massage → Ganesh Chaturthi Aromatherapy.
- Enter Quantity = 1, Rate = ₹2,500. Ferbz automatically calculates GST at 18 % (₹381.36) and shows Total = ₹2,881.36. If Shanti Bliss Spa is under the composition scheme, the GST field can be switched to the lower fixed rate, and the total will adjust accordingly.
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Assign a therapist
- In the same screen, locate the Therapist field and select “Anjali Patel”. This links the booking to the therapist’s schedule and updates her daily workload view.
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Generate the receipt
- Click Checkout. Ferbz instantly creates a PDF receipt, stores it in the Documents tab of Rohit’s client profile, and shows a Shareable Link button.
- The receipt includes:
- Spa name and GSTIN
- Client name and GSTIN (if provided)
- Service description, rate, GST amount, and total
- A unique invoice number for GST filing
- The system deducts 1 credit from the prepaid wallet for the WhatsApp confirmation that will be sent next.
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Create the booking
- After checkout, a modal appears: Create Booking? Click Yes.
- The Appointments calendar opens with the current date highlighted. Choose the date 09 Oct 2024 (Ganesh Chaturthi) and time 11:00 AM.
- The Booking Type defaults to “Appointment”. The Client field is already filled with Rohit’s name, and the Therapist field shows Anjali.
- Click Save Booking.
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Automatic WhatsApp confirmation
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As soon as the booking is saved, Ferbz fires a WhatsApp Business API message through Gupshup. The default template reads:
Hi Rohit, your Ganesh Chaturthi Aromatherapy Massage at Shanti Bliss Spa is confirmed for 09 Oct 2024, 11:00 AM. Your invoice: ₹2,881.36 (incl. GST). Reply YES to confirm or CALL 020‑1234‑5678 for changes. -
The Reminders board now shows a new entry: Booking Confirmation – Sent – Delivered – Read with timestamps.
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Set up a follow‑up reminder automation (optional but recommended for festivals)
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Navigate to Automation → Create Journey.
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In the plain‑English goal box, type: “remind clients 2 days before their Ganesh Chaturthi package expires”.
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Ferbz suggests a flow: Trigger → Wait 2 days → Message → Branch (if read → no action, if not read → resend).
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Edit the message to:
Dear Rohit, your Ganesh Chaturthi Massage package ends on 11 Oct 2024. Book your next session now and enjoy a 10% festive discount! Reply BOOK to schedule. -
Save the journey. Because Rohit’s booking just completed, he is automatically enrolled. The reminder clock starts, and the message will be queued for 2 days before the package end date. Each reminder consumes 1 credit, and its status appears on the Reminders board.
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Check credit balance
- Click Dashboard → Wallet. You will see the current credit count (e.g., 987 credits). The recent deduction for the confirmation and the pending deduction for the reminder are listed under Recent Activity.
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Review reporting
- After the festival weekend, go to Reports → Revenue → select date range 01 Oct 2024 – 15 Oct 2024. The report shows:
- Gross sales: ₹2,881.36
- GST collected: ₹381.36
- Net revenue after GST: ₹2,500.00
- Messages sent: 2 (1 confirmation, 1 reminder)
- Credits used: 2
- After the festival weekend, go to Reports → Revenue → select date range 01 Oct 2024 – 15 Oct 2024. The report shows:
By following these steps, Shanti Bliss Spa can bill instantly, stay GST‑compliant, confirm bookings on WhatsApp, and set up automated reminders—all without leaving the Ferbz dashboard.
Why It Helps
Time saved: Before Ferbz, a spa receptionist would manually create a GST invoice in a spreadsheet, email the PDF to the client, then type a separate WhatsApp message on a personal phone. That workflow typically takes 7–9 minutes per client. With Ferbz, the same process completes in under 45 seconds – a reduction of ≈92 % in handling time.
Revenue recovered: In the Ganesh Chaturthi example, 30 % of clients who receive a reminder rebook within 48 hours, generating an average extra ₹1,200 per rebooked client. For a spa that books 120 festive sessions, that equals ₹144,000 in incremental revenue. The cost of two WhatsApp credits (₹2 × ₹0.99 ≈ ₹2) is negligible compared to the recovered sales.
GST compliance made easy: The PDF receipt automatically applies the correct 18 % GST, displays the invoice number, and stores the document in the client’s profile. This eliminates manual GST calculations and reduces the risk of filing errors during the quarterly return. For businesses under the composition scheme, the lower fixed rate is selectable, keeping the filing process accurate.
Reduced no‑shows: The instant WhatsApp confirmation includes a read receipt. When the Reminders board flags a “Not Read” status, the automation journey can resend a gentle nudge, cutting the typical no‑show rate from 12 % to 4 % during festival peaks.
Credit‑only pricing eliminates surprise bills: Because each message draws a single credit, the spa owner sees exactly how much was spent on communications. If Shanti Bliss Spa starts the month with 1,000 credits (₹799) and uses 250 credits for confirmations and reminders, the remaining balance is visible, and the owner can top‑up only when needed.
Overall, the Billing + Appointments capability turns a fragmented, error‑prone process into a single, fast, GST‑aware transaction that drives higher rebooking rates, lower administrative overhead, and clearer financial reporting – precisely the outcomes spa owners in Tier‑2 and Tier‑3 Indian cities need during high‑traffic festivals like Ganesh Chaturthi.
Get Started with Ferbz
Ready to issue fast, GST‑compliant invoices and send instant WhatsApp confirmations for your Ganesh Chaturthi sessions? Sign up for a free trial at https://dashboard.ferbz.com/, load your prepaid wallet, and follow the steps above to see the workflow in action. If you have questions or need help configuring your first automation journey, email support@ferbz.com – our onboarding team will walk you through the setup and ensure your spa is ready for the festive rush.
Do I need to register for GST to use Ferbz’s billing module?
A: If your spa’s annual turnover is below ₹20 lakh (₹10 lakh in special‑category states), GST registration is not mandatory. Ferbz lets you toggle the GST rate off or select the composition‑scheme rate if you are eligible, so you stay compliant whichever regime you fall under.
How does Ferbz handle the WhatsApp Business API cost?
A: All WhatsApp messages – confirmations, reminders, broadcasts – are sent through the official API via Gupshup. Each outbound message consumes **1 credit** from your prepaid wallet. There are no hidden carrier fees; you only pay for the credits you purchase (₹99 = 100 credits, etc.).
Can I customize the confirmation template for Ganesh Chaturthi?
A: Yes. In **Settings → WhatsApp Templates**, you can edit the default booking confirmation text, add festive emojis, or insert dynamic fields such as client name, service, date, time, and GST‑inclusive total. The template you save will be used for every confirmation sent thereafter.
What happens if a client’s WhatsApp number is invalid or the message fails?
A: The **Reminders board** shows a “Failed” status with an error code. You can click the entry to view details and resend manually or trigger a fallback SMS (if you have an external integration). Failed attempts still consume a credit, but the board ensures you never miss a silent failure.
Is there a limit to how many bookings I can confirm in a day?
A: Ferbz imposes no hard daily limit; the only constraint is the number of credits in your wallet. As long as you have sufficient credits, you can generate and confirm unlimited bookings, making the system scalable for both small boutique spas and larger wellness centres. ---
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