MonthlyCards is a comprehensive application designed for vendors delivering water, milk, gas, and tiffin on a monthly basis, offering robust solutions for sales and accounting alongside daily order management for clients. The platform allows vendors to create various products and set unique pricing for each customer, facilitating the sending of payment requests and the tracking of both pending and completed payments for every client. Traditionally, vendors relied on inefficient paper-based cards for accounting, which are often prone to loss or damage, creating significant challenges. Given that the majority of customers operate on a postpaid basis, vendors frequently find themselves chasing payments, with some invoices remaining unsettled for six to eight months. Orders are typically placed through calls or messages, a method that can easily lead to miscommunication, delays, and wasted resources. Furthermore, the absence of a dedicated customer relationship management (CRM) system complicates the management of customer interactions and their respective orders, ultimately hindering operational efficiency. Hence, a streamlined solution like MonthlyCards is essential for improving vendor capabilities and enhancing customer satisfaction.