Applicable scenario: Delete a line of goods that has already been added to the current sales document, such as when a customer cancels a purchase or makes an operational error.

1. Default deletion of first line product

In the POS billing interface, without selecting any line, simply press the F6 key on the keyboard, and the system will automatically delete the first line of goods (the first line is selected by default) and refresh the document amount.

2. Specify to delete a certain row of products

On the POS billing interface, use the up and down arrow keys ↑↓ on the keyboard to move the cursor to the product line that needs to be deleted, and the screen will highlight the selected line. After confirming the selection of the target line, press the F6 key, and the product in that line will be immediately removed from the document, and the system will automatically recalculate the total price.