Task: Text to Code
Input (English): SQL: SELECT customer_name FROM Customers GROUP BY customer_name ORDER BY Count ( * ) Desc LIMIT 1
Feedback: Discard customer name in customers table , use Mailshot Customers's customer id in step 1 in place of that .
Output (English): SELECT T2.customer_name FROM mailshot_customers AS T1 JOIN customers AS T2 ON T1.customer_id  =  T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1