| Back office | The GPOS web admin for owners and managers. |
| Business code | The short code of your business, used with your e-mail to sign in. |
| Branch | A shop or outlet. |
| Register | A checkout counter in a branch. Each has one till. |
| Till | The device and screen used to sell, paired to a register. Also called POS. |
| Store / warehouse | A place where stock is kept. Every branch has a default one. |
| Shift | A period of selling on one till, from opening (with a float) to closing (with a count). |
| Float | The cash in the drawer when a shift opens, for giving change. |
| Cash in / cash out | Money put in or taken out of the drawer that is not a sale or refund. |
| Blind close | Counting the drawer before seeing the expected amount. |
| X report | A mid-shift summary; the shift stays open. |
| Z report | The end-of-shift summary after closing. |
| Reconciled | A closed shift for which the back office has every record from the till. |
| POS PIN | A 6-digit number to unlock the till. |
| Two-step sign-in | Signing in to the back office with your password plus a code from an authenticator app. |
| Authenticator app | A phone app (Microsoft Authenticator, Google Authenticator…) that shows a new 6-digit code every 30 seconds. |
| Recovery code | One of 10 single-use codes for two-step sign-in when you do not have your phone. |
| PDPA | Sri Lanka’s Personal Data Protection Act. Customers can ask for a copy of their data or for it to be erased. |
| SKU | Your own code for a product variant. |
| Variant | One sellable version of a product (size, colour). |
| Pack barcode | A barcode for several units at once, written code:quantity. |
| Tax group | What a product is given; combines one or more tax rates. |
| Quick-pick | A product button on the till for items without barcodes. |
| Opening stock | The quantities you start with. |
| Adjustment / write-off | A stock correction / a stock loss, with a reason. |
| Stock count | Counting the shelves and posting the differences. |
| Transfer | Moving stock from one store to another. |
| Batch / expiry | A received lot of an item with its expiry date. |
| Reorder level | The quantity at which an item counts as low stock. |
| Average cost | The running average purchase cost of an item in a store. |
| PO | Purchase order (numbered PO-…). |
| GRN | Goods received note — a booked delivery (numbered GRN-…). |
| Void | Cancelling a whole sale in the same shift. |
| Return | Giving back some or all items of a sale, with a refund. |
| Sync | The till sending its work to the back office and receiving updates. |
| Sync issue | Something from a till the back office could not accept as recorded; an administrator decides. |
| Support session | Your service provider helping you inside your account; always shown and recorded. |
