How Supreme Tarpaulins tracks every kilo of HDPE from roll to invoice, with Excel upload, live stock checks and automatic GST
Supreme Tarpaulins buys HDPE in kg rolls and sells cut tarpaulins in fixed sizes to businesses and walk-in buyers. We built one system that follows the material from purchase to sale: three ways to receive HDPE stock, roll-to-size make orders uploaded from Excel, square feet and weight calculated automatically, and one-click conversion from quotation to sales order, B2B or B2C invoice. Stock is checked live while billing, and GST is worked out automatically.
The Challenge
- HDPE is bought by weight (kg) but sold as pieces of a fixed size, so stock in kg and in pieces never matched
- Orders arrive as rolls, as a fixed-size parent sheet, or as ready finished goods
- Thousands of items had to be entered for opening stock, transfers and corrections
- The same sale was typed three times: quotation, sales order, invoice
- Invoices were made for items that were not in stock
- B2B needs CGST + SGST or IGST depending on the state; B2C prices already include GST
Our Solution
- Three HDPE stock flows: roll order, fixed-size parent, and fixed-size finished goods
- Total square feet and weight calculated from size and GSM for every finished good
- Make Order: turn a roll into many sizes by uploading an Excel sheet, with a summary of ordered, received, given for cutting and sizes made
- Excel upload in 11 modules: products, purchase orders, HDPE purchase orders, finished goods, make orders, opening stock make orders, opening stock, stock transfer, stock minus, stock plus and sales orders
- Quotation cum Proforma Invoice that converts in one click to a Sales Order, B2B Invoice or B2C Invoice
- Live stock check: when a quantity is entered, the system checks stock at that location and stops the sale if there is not enough
- B2B invoices split CGST + SGST or IGST by state of supply; B2C invoices work taxable value and GST back out of the inclusive price
- Special sales orders uploaded from an Excel template
- Every invoice reduces stock automatically
The Results
- Every kilo of HDPE traced from purchase to finished size to invoice
- Square feet, weight and GST calculated automatically, with no manual sums
- Hundreds of items entered in one Excel upload instead of one by one
- One entry becomes a sales order or invoice, with no retyping
- No sale can be billed for stock that is not there
- Live stock for shop and godown




































































































