Cold Room Quotation Software Requirements

I need a detailed set of requirements for a software solution designed for a cold room company to streamline their quotation process. The software should be web-based and integrate seamlessly with existing systems. Here are the key functionalities and requirements:

Key Requirements:
- **Quotation Calculation**: The software should calculate the price of a cold room based on various inputs including dimensions, volume, material type, quality, temperature requirements, and additional data provided by the company such as energy consumption.
- **User Management**: Implement user roles for admin and sales personnel, allowing for efficient management and assignment of tasks.
- **CRM Integration**: Integrate with the existing CRM to select existing clients and ensure no duplicate quotations are sent to the same client by different salespersons.
- **ERP System Connection**: Connect to the existing ERP system to display contract details and generate a QR code for each contract.
- **Quotation Assignment**: Assign each quotation to a specific salesperson to maintain accountability and track performance.

Ideal Skills and Experience:
- Strong experience in developing web-based applications.
- Proficiency in integrating software with CRM and ERP systems.
- Ability to implement user management systems with role-based access.
- Experience in developing software for the manufacturing or construction industry is a plus.
- Strong communication skills to understand and incorporate additional data inputs as provided by the company.

I am looking forward to proposals from freelancers who can deliver a robust and efficient solution tailored to these specifications.