Units buy to production, not to jobs
Plywood mills run continuously and buy veneer, adhesives, chemicals and hardware to keep the line moving. A unit that runs short does not pause, it buys elsewhere that morning, which makes minimum levels on the fast consumables worth more to a supplier here than any report.
Grade and batch decide the outcome
Adhesives and chemicals come in grades that behave differently in production, and supplying the wrong one is a batch failure at the customer's end. Recording grade and batch on the purchase and the sale is what lets you trace a complaint back to a supplier lot and forward to every unit that received it.
Finished panel going outward
Plywood leaves for buyers across south India and beyond, which means inter-state despatch and IGST rather than CGST and SGST. The treatment switches automatically from the buyer's state, with the vehicle and freight details for the e-way bill on the same record as the invoice.