Poor POS Functionality.
When the bar code is not registered, an error pops up to tell the user.
Unfortunately, the user can continue to scan other products and not see the error message, resulting in the product without a bar code not being added to the sale and a loss to the store.
Other POS systems have an error sound and force the user to acknowledge the error message via a button click.
What does Shopify offer to solve this issue?