Rename custom tab

Hi,

For my client, they have manually added a custom tab instead of using saved tabs, so I need to rename the heading of one of the tabs to something else.

I want to rename tab “Dokumenter” to “Bruksanvisning”

I tried the following snippet, but it’s not working.

add_filter(‘yikes_woocommerce_custom_repeatable_product_tabs_heading’, function( $heading ) {
if ( strstr( $heading, ‘dokumenter’ ) ) {
return str_replace( ‘dokumenter’, ‘Bruksanvisning’, $heading );
}
return $heading;
}, 99);

The page I need help with: [log in to see the link]