Hi Rudolf,

Please add the custom code below. (How to add custom code? ↗):

add_filter( 'woocommerce_get_price_html', function ( $price, $product ) {
	if ( class_exists( 'WPCleverWooco' ) && $product->is_type( 'composite' ) && ( $components = $product->get_components() ) ) {
		if ( $product->get_pricing() === 'only' ) {
			return $price;
		}

		$product_id   = $product->get_id();
		$custom_price = stripslashes( get_post_meta( $product_id, 'wooco_custom_price', true ) );
		$price        = $product->get_pricing() === 'include' ? wc_get_price_to_display( $product ) : 0;

		foreach ( $components as $component ) {
			if ( ! empty( $component['default'] ) ) {
				// has default product
				if ( is_numeric( $component['default'] ) ) {
					// id
					$product_default = wc_get_product( $component['default'] );
				} else {
					// sku
					$product_default = wc_get_product( wc_get_product_id_by_sku( $component['default'] ) );
				}

				if ( ! empty( $component['price'] ) ) {
					// has new price
					$price += wc_get_price_to_display( $product_default, [
						'qty'   => $component['qty'],
						'price' => WPCleverWooco::get_new_price( $product_default->get_price(), $component['price'] )
					] );
				} else {
					$price += wc_get_price_to_display( $product_default, [
						'qty' => $component['qty']
					] );
				}
			}
		}

		if ( ! empty( $custom_price ) ) {
			return str_replace( '%s', wc_price( $price ), $custom_price );
		} else {
			return wc_price( $price );
		}
	}

	return $price;
}, 999, 2 );

It will automatically calculate the composite price from the default component products. Alternatively, you can use "%s" in the custom price, as with Bundles.