In this work I measured the satisfaction of the customers of Marjane Menara, especially in the department of household appliances with proposals towards the end to improve the after sales service of the store. This work is divided into two parts, the first of which is a theoretical presentation on the measurement of customer satisfaction. In the second part, well said the practical aspect, it is the study of the satisfaction of the customers of MARJANE MENARA with presentation of the results.