This functionality will allow you to discount the cost of individual items on an invoice or while invoices. This makes it much easier to apply once off discount from suppliers so you are better able to calculate your GP.

Enable Invoice Discounts

1. From the main screen of Retailer, go to Setup -> System -> Other.
2. Tick the box Allow discounts in Invoice Arrivals.
   

This enables a tick-box in Invoice Arrivals for allowing discounts.

Enabling Discounts by Supplier (Optional)

You can set the enable discount to be enabled by default by supplier.

1. From the main screen of Retailer, go to Stock -> Suppliers & Departments -> Suppliers
2. Click the magnifying glass at the bottom and search for the supplier you are setting up.
3. Click on the Other tab.
4. Tick the Enable discounting for this supplier tick-box.
5. Click Save.
   

Note: The original cost price will only be remembered and used on future orders and invoice arrivals if the supplier is set to Use Last Arrival Stock Cost Price. This can be found in the Supplier screen, in the Other tab, on the right under 'When creating orders and arriving stock...'

Applying Discount on an Entire Invoice

1. From the main screen of Retailer, go to Stock -> Invoice Arrivals.
   
2. Select the Invoice you wish to apply the discount to, or create a new invoice arrival.
3. Make sure the Enable Discounting box is ticked, near the top of the page below order number.
   
4. Enter the discount into the discount box just below. A discount entered here will apply to the whole invoice. Press [F6] to change between a percentage and amount discount.
5. Click apply then choose between applying or removing the discount. 
   

This can be done before or after the invoice is entered.

Applying Discount on a Single Item

1. Create an invoice or select an invoice to edit.
2. Make sure the Enable Discounting box is ticked.
3. Arrive an item as normal.
4. Enter the quantity recieved.
5. Put the discount either in Discount % or Discount $.
6. Continue arriving the item as normal.