In order to improve the Supply Chain, satisfy the customer's expectations in terms of quality and deadlines, and improve the internal management of its resources, many manufacturing companies, works perpetually for the implementation of improvement and corrective actions to reduce quality defects and limit customer complaints. To ensure a good quality of the product, it is necessary to act on several parameters such as the diversity of the types of products produced on the same line and this, by elaborating an optimized planning of the production and by ensuring a sequencing of the references which maximizes the efficiency and minimizes quality defects. This paper, therefore, is concerned with the daily planning of production based on a mathematical model that minimizes the difference in product production times in order to maintain optimal speed of the line. As a result of this mathematical model, we get two decision variables: the quantity to be produced by each shift and the order of production per shift per reference, those results will help the planner to avoid shortage on the customer side and the producer to improve the KPIs related to the output quantity and the defaults percentage.