Resources

Practical guides from the ByteSync implementation team to help you choose and run the right POS and ERP setup.

POS vs ERP: What's the Difference?

POS (Point of Sale) is where the sale happens: the counter, the table or the take-away order. It records what was sold, to whom and how it was paid.

ERP (Enterprise Resource Planning) is the system behind the counter. It connects sales with purchasing, inventory, suppliers, customers and accounting, so every sale updates your stock and your books.

Most growing businesses need both: a fast POS at the front, and an ERP that turns those sales into accurate stock, costs and reports. With AIS Polypus, both run in one integrated system.

FIFO Inventory Explained

FIFO means First In, First Out. The stock you received first is treated as the stock you sell first.

Why it matters: if you bought the same product at different prices, FIFO calculates your cost from the oldest batch first, giving more accurate profit figures. For food and perishable goods, it also matches how you should physically rotate stock so older items leave before they expire.

What Is Stock Aging?

Stock aging shows how long each item has been sitting in inventory, usually grouped into ranges like 0–30, 31–60 and 60+ days.

It helps you spot slow-moving products tying up cash, items close to expiry, and over-ordering from suppliers, so you can discount, bundle or reorder smarter.

Purchase Orders vs Purchase Invoices

A Purchase Order (PO) is what you send to a supplier: "This is what we want to buy, at this price."

A Purchase Invoice is what the supplier sends back after delivering: "This is what we delivered, and what you owe."

Recording both lets you compare what you ordered with what arrived and what you were charged, catching errors before you pay, and keeping stock and supplier balances accurate.

More Guides Coming Soon

How to choose POS hardware, restaurant inventory management, and an ERP implementation checklist.

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