This book is devoted to an in-depth study of the creation and modification of application solutions on the 1C: Enterprise 8.2 system platform. It is a partial revision of the popular book "Professional Development in the 1C: Enterprise 8 System." The book includes materials that describe the 1C: Enterprise 8.2 mechanisms for exchanging data in distributed systems, as well as mechanisms and technologies that allow you to integrate application solutions with other information systems that do not use "1C: Enterprise."