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Point of Sale · Guide 4

Selling

The POS sell screen is a full-screen register interface designed for fast retail transactions.

  • Retail owners and cashiers
  • Updated

In this guide

4.1 Accessing the Sell Screen

  1. Go to Sidebar > Sales > Sell (or click the Sell button)
  2. The sell screen opens with your active shift

4.2 Adding Items

You can add products to the cart in several ways:

  • Barcode Scan — Scan a product barcode with a connected scanner
  • Product Search — Type a product name, SKU, or barcode in the search box
  • Category Browse — Browse products by category with images and stock levels

Each item shows:

  • Product name and SKU
  • Available stock at the current location
  • Unit price
  • Tax treatment (Taxable, Exempt, Zero-Rated)

4.3 Adjusting Cart Items

For each item in the cart you can:

  • Change the Quantity
  • Apply a Discount (fixed amount or percentage)
  • Change the Tax Treatment (if supervisor-approved and permitted in settings)
  • Remove the item

4.4 Applying Discounts

  • Line-level discount — Apply to individual items
  • Supervisor approval — Discounts above the configured cashier limit require a supervisor PIN

The maximum cashier discount percentage is set in POS Settings.

4.5 Selecting a Customer

  1. Click Add Customer on the sell screen
  2. Search by name, phone, or Ghana Card number
  3. Select an existing customer or Quick Create a new one
  4. Quick Create requires a name; phone is optional
  5. The customer is attached to the sale for receipt, credit, and loyalty tracking

4.6 Completing a Sale

  1. Review the cart (items, quantities, discounts, tax)
  2. Click Pay
  3. Select the Payment Method(s):
    • Cash — enter amount tendered, system calculates change
    • Card — enter reference number
    • Mobile Money — enter reference number
    • Bank Transfer — enter reference number
    • GhQR — enter a reference if needed
  4. You can split payment across multiple methods
  5. If Allow Credit Sales is enabled in POS Settings and a customer is attached, switch on Charge remaining balance to customer credit
  6. Enter the Due Date for the outstanding balance if you are saving a credit sale
  7. Click Complete Sale or Complete Credit Sale
  8. The receipt is generated automatically

4.7 Tax Calculation

Tax is calculated based on your POS settings:

  • Tax-inclusive pricing — Prices already include tax (tax is backed out)
  • Tax-exclusive pricing — Tax is added on top of the price
  • Default Tax Group — Applied to all taxable items unless overridden
  • Item tax treatment — Individual items can be Taxable, Exempt, or Zero-Rated

4.8 Parking (Suspending) a Sale

If a customer needs to step away or you need to serve another customer:

  1. Click Park Sale
  2. The sale is saved with its items, selected customer, sale-level discount, tax mode, and note
  3. Later, open the Parked Sales page or the recall modal on the sell screen
  4. Click Recall to resume the sale

4.9 Voiding a Sale

To void a completed sale:

  1. Open Sales History, then open the completed sale and click Void.
  2. Enter a clear Reason explaining the correction.
  3. Ask an authorized supervisor or owner for this location to enter their POS PIN: exactly four digits, including any leading zero. This is not your account password. Do not put the PIN in the reason or send it to support.
  4. Click Void Sale and wait for confirmation. Verify that the sale now shows Voided before attempting another correction.

The dialog shows Checking PIN... during verification. Cancel, the close button or Escape stops this check; the sale is not submitted, the PIN is cleared and your reason is kept. After the dialog shows Voiding sale..., submission has begun and cannot be cancelled from the dialog. Check the sale status before retrying if your connection drops. An expired-session message means refresh the page; a verification timeout means check your connection and try again. Neither message means the PIN was rejected.

Voiding restores the original inventory-tracked quantities to the sale location, including every original component of a fixed combo, and records the reason, approving actor and time. It also marks the sale's payments as refunded in SikaBooks; it does not itself send money through a card or Mobile Money provider.

A cashier PIN cannot authorize a void. The approver must be active and assigned to the sale location. A sale with recorded returns, or a credit sale with recorded collections, cannot be voided. If the PIN is rejected, check the POS staff role and location or ask an authorized colleague to reset the PIN. Do not create another sale or change stock to bypass approval.


4.10 Selling Fixed Combos

Select or scan a fixed combo like any other retail POS product. The cart shows its name, price and exact contents. Adjusting the combo quantity changes all component quantities together; cashiers cannot substitute individual contents.

Checkout checks the current recipe and all required stock at the register location, including component products also sold separately or included in another combo. A changed recipe blocks checkout. Park and recall preserve the combo as a single cart selection, subject to a fresh price and stock check.

Allow negative stock in Inventory Settings > Stock applies to both single products and valid fixed combos. When it is off, insufficient available component stock blocks the combo. When it is on, checkout may reduce each component below zero; a stock badge reading Negative stock allowed is a warning, not a checkout block. After the setting is changed, reload the POS product list to refresh the badges. Checkout always uses the current server setting.

For example, a combo containing two units of Product A and two units of Product B deducts two units from each product when one combo is sold. If both products have -4 units, they move from -4 to -6 when negative stock is allowed. The combo has no separate stock balance. Investigate the shortage and record only genuine receipts or authorized stock corrections; enabling this setting does not receive stock or erase existing shortages.

The setting does not permit inactive products, changed combo contents, missing serial numbers, or an invalid recipe. Fixed combos currently support ordinary stock goods only, without variants, batch tracking or serial tracking. Needs review means the combo definition must be corrected in Inventory before selling.

The recorded sale contains the component lines with the original combo name. The combo price is allocated across the components, whose own tax treatment and inventory cost apply. Receipts, sale details and downloads retain this identity. Returns select the original component lines and refund their allocated sale amounts, not their current standalone prices. The final return includes any remaining rounding cent. Ordinary return permissions and approval controls still apply.