On Suppliers, list each supplier once with a contact person, phone and email. On Purchase Orders, log each order with its PO number, date, supplier, a short item summary, value, expected delivery and a status, and fill the date received when it arrives. The Outstanding tab then lists every order not yet fully received, oldest first, with a LATE flag once it is past its expected date.
The Summary counts your orders, their value, what is still outstanding and how many deliveries came on time. Yellow cells are your only inputs and the rest is locked formulas. The premium version adds a dashboard, a per-supplier reliability analysis and a printable A4 one-page purchase order you can send straight to the supplier. Opens in Excel, WPS or Google Sheets.