How to disable cashback to be used with coupon at the same time?

@labetenoirre Please use the attached code in theme functions.php file to disable cashback if coupon applied in an order.

add_filter( 'process_woo_wallet_general_cashback', 'process_woo_wallet_general_cashback_callback', 10, 2 );
if ( ! function_exists( 'process_woo_wallet_general_cashback_callback' ) ) {
	/**
	 * Disable cashback if coupon applied.
	 *
	 * @param bool     $process
	 * @param WC_Order $order
	 * @return bool
	 */
	function process_woo_wallet_general_cashback_callback( $process, $order ) {
		if ( count( $order->get_coupon_codes() ) > 0 ) {
			$process = false;
		}
		return $process;
	}
}

Hello, it’s not working. I tested it and I can still apply a coupon and use my wallet cashback at the same time.

Is there a specific part of the functions.php file where I should paste this code?

@labetenoirre Did you check it by placing an order?

Yes I did, they’re both being used.