Invoices in Mero are tied to the pieces they sell, so sending one takes the stock out and paying one records the profit — costed at what that piece really cost you.
Draft an invoice, then send it: Mero numbers it, takes the pieces out of stock, and emails the customer a PDF with your logo. Record payments as they arrive.
Bring your customer list from Square or any spreadsheet, and review each customer before it is saved.
Every paid invoice shows what each piece cost and what it sold for, filterable by period and metal. The Profit view rolls the same numbers up across your financial year.
Choose where you sit in the supply chain, import your existing data with a review step, and let the procurement agent prepare the first piece of real work.