This is the part of the code from invoice.tpl from
/design/backend/mail/templates/orders
{foreach from=$order_info.products item="oi"} {hook name="orders:items_list_row"} {if !$oi.extra.parent} {$oi.product|default:__("deleted_product") nofilter} {hook name="orders:product_info"} {if $oi.product_code}{__("sku")}: {$oi.product_code}
{/if} {/hook} {if $oi.product_options}
{include file="common/options_info.tpl" product_options=$oi.product_options}{/if} {$oi.amount} {if $oi.extra.exclude_from_calculate}{__("free")}{else}{include file="common/price.tpl" value=$oi.original_price}{/if} {if $order_info.use_discount} {if $oi.extra.discount|floatval}{include file="common/price.tpl" value=$oi.extra.discount}{else} - {/if} {/if} {if $order_info.taxes && $settings.General.tax_calculation != "subtotal"} {if $oi.tax_value}{include file="common/price.tpl" value=$oi.tax_value}{else} - {/if} {/if}
{if $oi.extra.exclude_from_calculate}{__("free")}{else}{include file="common/price.tpl" value=$oi.display_subtotal}{/if} {/if} {/hook} {/foreach}
How do I get rid of the showing 'product_code' on invoice as removing following
{hook name="orders:product_info"} {if $oi.product_code}{__("sku")}: {$oi.product_code}
{/if} {/hook}
does not help?