Recurring Invoice Management
Set flexible billing intervals for repeat clients. The platform auto-generates and dispatches invoices based on predefined schedules, making it easy to manage subscriptions and long-term payment cycles.
SaaS B2B Invoicing & Billing Software Development
Automated B2B invoicing software with recurring billing, real-time tracking, and Azure serverless architecture for secure, scalable operations.
Project Overview
This cloud invoicing software is a SaaS-based platform purpose-built for small to mid-sized B2B businesses, offering a streamlined way to create, manage, and automate invoices—whether one-time or through a recurring invoice software model. Leveraging Microsoft Azure’s serverless architecture, the platform ensures high scalability, reduced infrastructure costs, and minimal maintenance overhead. Each business operates from its own secure subdomain, complete with a full-featured CRM for managing customers, invoices, payment agreements, and billing schedules. To ensure compliance and build trust, the platform enforces legally binding digital agreements before payment is processed, delivering a secure, unified experience that boosts efficiency and customer confidence.
Overcoming Core Challenges in Building B2B Invoicing
Addressing the critical gaps in automation, integration, and payment workflows to deliver a secure, real-time, and user-centric recurring invoice software platform for modern B2B businesses.
Real-Time Invoice Status
Maintaining up-to-date payment statuses was a challenge due to the need for constant polling. Businesses lacked instant visibility into transactions, impacting financial planning and reducing overall operational efficiency.
Data Syncing with FluidPay
Ensuring data consistency between the cloud invoicing software and FluidPay API was difficult, with delays causing discrepancies in customer records, payments, and invoice statuses across systems.
Invoice Reminder Automation
The absence of automated reminders for due or overdue invoices led to delayed collections and inconsistent cash flow, putting pressure on manual teams to follow up regularly.
Seamless Agreement Signing
Integrating an e-signature process that didn’t disrupt the user journey was essential. Redirects to external platforms created friction and reduced completion rates for agreements and payments.
Dynamic Agreement Creation
There was no system in place to auto-generate agreements based on payment preferences. Manual contract handling slowed down onboarding and increased the risk of errors and non-compliance.
Smart Solutions to Power B2B Invoicing Software
By leveraging automation, seamless integrations, and cloud invoicing software principles, we built a secure, scalable solution rooted in Azure serverless architecture and optimized serverless application development practices.
Real-Time Invoice Sync with FluidPay
We integrated FluidPay webhooks to eliminate constant polling and instantly update invoice statuses, enabling businesses to track payments in real time and streamline cash flow operations more efficiently.
Automated Reminders via Serverless Triggers
Using Azure serverless architecture, we implemented Timer Triggers that dispatch invoice reminders daily through SendGrid and Twilio, ensuring consistent follow-ups and reducing manual workload significantly
Pre-Payment Agreement Signing Workflow
To reinforce trust and legal compliance, we created a custom e-signature module that prompts users to sign agreements before payment, then redirects them to FluidPay via iframe for a seamless transaction experience.
Drag-and-Drop Agreement Builder
A flexible builder allows businesses to create dynamic agreements based on payment types. These are signed digitally, stored securely, and automatically linked to invoices, reducing errors and improving onboarding.
Bi-Directional Sync and Data Integrity
We ensured complete synchronization between our system and FluidPay using bi-directional APIs, maintaining consistent customer, payment, and invoice data through robust serverless application development practices.
Robust Features Powering Invoicing Ecosystem
Pre-Payment Agreement Signing
Digitally enforce legally binding agreements before payment processing, ensuring full compliance, greater customer trust, and protection for both parties without disrupting the payment flow.
Multi-Tenant SaaS Structure
Each business operates within a secure, dedicated portal under a unique subdomain, featuring its own CRM, settings, and branding, ensuring data isolation and platform scalability.
Custom Invoice Templates
Businesses can use ready-made invoice themes or request customized versions with admin approval, ensuring consistent branding and professional presentation across all outgoing invoices.
Customer Management (CRM)
Add, edit, and manage customer profiles with ease. View complete invoice histories, payment records, and agreements linked to individual customer accounts for seamless oversight.
Real-Time Dashboards
Gain instant access to visual KPIs such as total invoices, overdue bills, active customers, and upcoming payments—helping businesses make informed decisions at a glance.
Automated Alerts & Notifications
Integrated with SendGrid and Twilio, the platform automates invoice reminders, overdue alerts, and payment confirmations via email and SMS, keeping customers consistently informed.
Multi-Portal Architecture
Includes a Marketing Portal for business sign-up, Super Admin for approvals and platform management, and Business Admin Portal for daily invoicing and customer operations, ensuring complete workflow control.
Tech Implementation
- React
- Redux Toolkit
- Azure DevOps
- .NET Core
- TypeScript
Measurable Impact That Transformed B2B Invoicing Operations
From reduced manual workload to improved cash flow and security, the platform delivered significant business value through automation, scalability, and real-time capabilities tailored for modern B2B invoicing needs.
Reduced Manual Workload
Automating recurring invoices and reminders eliminated 60–70% of manual billing processes, freeing teams to focus on strategic tasks and reducing operational fatigue in finance departments.
Increased Payment Security
By enforcing agreement signing before payment, the system enhanced customer trust, legal protection, and transaction transparency—adding a vital compliance layer to every invoicing interaction.
Better Cash Flow
Automated reminders and real-time invoice tracking led to faster payment cycles, helping businesses maintain healthier cash flow and reducing the time and effort spent on collections.
Fully Scalable & Customizable
The multi-tenant SaaS structure supports easy onboarding of new businesses with dedicated environments, offering flexibility, brand control, and long-term scalability without compromising performance.
Omni-channel Access
Accessible via web and mobile, the platform empowers businesses to manage billing anytime, anywhere, providing on-the-go control of their B2B invoicing software processes and customer interactions.