System Requirements Document for Grand-Invoice

Introduction

The "Grand-Invoice" project aims to develop a micro SaaS solution focused on automating invoice follow-ups for marketing agencies. This tool will address the pain points of overdue invoices and delayed cash flow by providing smart reminders, handling replies, and escalating politely. The target audience includes agencies and small service firms that invoice monthly retainers and seek to maintain client relationships while improving collections.

System Overview

Grand-Invoice will provide a comprehensive solution for marketing agencies to automate their invoice follow-up processes. The system will integrate with popular accounting software, offer configurable reminder sequences, and utilize AI to enhance personalization and escalation. The solution will be priced competitively to cater to solo and small teams, with options for multi-client or multi-seat usage.

Functional Requirements as Story Points

• As a Marketing Agency Owner, I should be able to integrate my accounting software (QuickBooks or Xero) with Grand-Invoice to streamline invoice management.
• As a Marketing Agency Owner, I should be able to configure reminder sequences to automate follow-ups for overdue invoices.
• As a Marketing Agency Owner, I should be able to view a simple dashboard showing overdue invoices and follow-up status.
• As a Marketing Agency Owner, I should be able to choose tone options for reminders, including friendly, firm, and final notice.
• As a Marketing Agency Owner, I should be able to receive AI-driven personalized reminder drafts to enhance communication with clients.
• As a Marketing Agency Owner, I should be able to utilize smart escalation timing to optimize follow-up processes.
• As a Marketing Agency Owner, I should be able to select "Pollar" as a payment method option.
• As a Marketing Agency Owner, I should be able to classify replies as “paid,” “dispute,” or “promise to pay” for efficient follow-up management.
• As a Marketing Agency Owner, I should be able to access risk scoring for likely-late accounts to prioritize follow-ups.
• As a Marketing Agency Owner, I should be able to forecast cash collections using AI to improve financial planning.

User Personas

• Marketing Agency Owner: Responsible for managing client relationships and ensuring timely invoice payments. Values automation and efficiency to reduce manual follow-up efforts.
• Account Manager: Handles day-to-day client interactions and follow-ups. Needs tools to maintain client relationships while ensuring payments are collected on time.

Core User Flows

• Marketing Agency Owner integrates QuickBooks or Xero -> Configures reminder sequences -> Views dashboard for overdue invoices -> Selects tone for reminders -> Receives AI-driven reminder drafts -> Utilizes smart escalation timing -> Classifies replies -> Accesses risk scoring -> Forecasts cash collections.

Visuals Colors and Theme

• primary: #1A73E8 (Blue)
• primary_light: #E8F0FE (Light Blue)
• secondary: #34A853 (Green)
• accent: #FBBC05 (Yellow)
• highlight: #EA4335 (Red)
• bg: #FFFFFF (White)
• surface: #F1F3F4 (Light Gray)
• text: #202124 (Dark Gray)
• text_muted: #5F6368 (Muted Gray)
• border: #DADCE0 (Gray)

Signature Design Concept

The Grand-Invoice landing page will feature an interactive "Invoice Journey" animation. Users will see an animated path where invoices travel through various stages: creation, sending, follow-up, and payment. Each stage will have interactive elements that users can click to learn more about the process. The animation will use motion/react for smooth transitions and interactions, creating an engaging experience that highlights the product's capabilities.

Landing Hero Motion Brief

The hero section will depict invoices being generated and sent out, transforming into reminders and finally resulting in payments. The animation will loop every 10 seconds, with a clear narrative of how Grand-Invoice facilitates the journey from invoice creation to payment. Users can hover over elements to see additional details, and the animation will adapt to different screen sizes, ensuring a seamless experience across devices.

Interaction Model & Motion Direction

The landing page will use an "animated" interaction model, featuring moderate scroll-triggered reveals and hover transitions. This approach will provide a polished experience, highlighting key features and benefits of Grand-Invoice without overwhelming the user.

Non-Functional Requirements

• The system must ensure data security and privacy, complying with relevant regulations.
• The application should be responsive and accessible across various devices and screen sizes.
• The system should handle a high volume of transactions without performance degradation.

Tech Stack

• Frontend: React for Web
• Backend: Python, FastAPI
• Database: MySQL or MariaDB, using Alembic for migrations
• AI Models: GPT 5.4 for user-friendly responses
• Local Orchestration: Docker, docker-compose
• Server-side Orchestration: Kubernetes

Assumptions and Constraints

• The primary users are marketing agencies with 5–50 clients.
• The system will initially support integration with QuickBooks and Xero only.
• Pricing will range from $29–$99/month, with options for higher tiers.

Glossary

• AI: Artificial Intelligence
• AR: Accounts Receivable
• MVP: Minimum Viable Product
• SEO: Search Engine Optimization

This document outlines the requirements and design considerations for the Grand-Invoice project, ensuring a focused approach to solving the invoice follow-up challenges faced by marketing agencies.