Customers, billing and payments on one platform
Customer management (CRM), billing software, a customer care app, an in-house field app and a multichannel call centre all share one source of data. Customers pay their water bills by QR code at zero cost.
Connected data
CRM at the centre, every module connected
Each customer has a single ID in the CRM, shared by billing, QR payment, the customer app, the call centre and the field app. The modules exchange data directly with each other and with the CRM, so meter readings, invoices, payments and transaction history are entered only once.
- Meter reading288 m³ · 10/2026
- InvoiceCalculating charges
- PaymentAwaiting payment
- HistoryMeter read
- Billing8 m³ used · VND 90,804
- QR code paymentAny banking app
- Customer care appiOS and Android
- Multichannel call centrePhone, Zalo OA, in-app calls
- In-house field appNew reading: 288 m³
- E-invoicing
- Banks
- E-contracts
Staff record readings in the in-house field app or receive them from smart meters, and the figures go straight to billing.
In the office
Customers, invoices and balances
Management software
- Customer management (CRM)
Customer records plus new connections, account transfers, suspensions, disconnections and reconnections, with central user and permission management.
- Billing
Calculate charges from meter readings, issue invoices and track balances, with e-invoicing built in.
- QR code payment
A dynamic QR code on every bill notice and billing message fills in the account number, amount and payment reference. Customers pay from any banking app, and the system reconciles and clears the balance on its own.
Mobile apps
Connecting customers and field staff
Mobile apps & Customer care call centre
- Customer care app
On iOS and Android. Customers get bill notifications, look up and pay bills in the app, apply for new connections, sign contracts electronically and report incidents.
- Multichannel call centre
Takes requests by phone, Zalo OA and in-app calls, and logs every request against the customer’s account.
- In-house field app
Field staff record meter readings and handle installation, repair, disconnection and meter-replacement jobs, with results sent back to the system on the spot.
The value
Benefits for your utility
- 80%Lower collection costs
- QR payment with automatic reconciliation and balance clearing. Save about VND 1,000 per transaction.
- VND 0In-app notifications
- Send messages and water bill notifications directly through the customer app.
- 1 recordShared customer data
- Records, readings, invoices and balances connected; enter data only once.
- SecurityInformation security
- Supports compliance with Vietnam’s 2025 Personal Data Protection Law and 2025 Cybersecurity Law.
- ConnectedInternal & external systems
- Connect internal software with Zalo OA, eContract and eInvoice.
In practice
A delivered project
Building and deploying BIWASE CRM
Standardised a water-utility CRM platform that connects customer records dating back to 2000 and serves more than 500,000 accounts across 9 branches.
- 500,000+ customer accounts
- 200+ functions
- 9 branches
See the connected software at work
Book a demo to follow one billing cycle from meter reading and invoicing to QR payment and automatic balance clearing.