The blocked customer query application is a tool designed to help companies check the status of their customers in relation to blockages or service restrictions. It allows users to perform quick and efficient queries, providing information about specific customers who may be facing some type of restriction.The application offers an intuitive interface, where users can enter customer data, such as name, CPF/CNPJ and obtain query results in real time. Data is retrieved from a centralized database, which contains up-to-date information on blocks or restrictions applied to certain customers.