woocommerce_product_tabs

When it fires

WooCommerce applies this filter in the single product tabs template (single-product/tabs/tabs.php). At priority 10 it adds the Description, Additional information and Reviews tabs, and at 99 it sorts all tabs by their 'priority' value.

Each tab is an array with a 'title', a 'priority' and a 'callback' that prints its content. The built-in tabs use priorities 10, 20 and 30.

Parameters

Parameters

$tabsarray	Array of product tabs.

What to return

The array of tabs, keyed by tab ID.

Example: Add a Delivery tab and remove Reviews

add_filter( 'woocommerce_product_tabs', function ( $tabs ) {
	unset( $tabs['reviews'] );
	$tabs['delivery'] = array(
		'title'    => __( 'Delivery', 'my-snippets' ),
		'priority' => 25,
		'callback' => function () {
			echo '<p>' . esc_html__( 'We dispatch within two working days.', 'my-snippets' ) . '</p>';
		},
	);
	return $tabs;
}, 20 );

Good to know

• Use a priority between 11 and 98, so the built-in tabs exist when you change them and the sorting still applies.
• Block themes: the Product Details block with accordion items only picks up extra tabs you add here. To remove or rename its built-in sections, edit the block in the Site Editor.
• Removing the Reviews tab hides it but doesn't switch reviews off; do that under WooCommerce > Settings > Products.