Currently, in the real estate cadastre, there is a large number of errors in information about real estate. The presence of errors in the Unified State Register of Real Estate or documents on the ownership of real estate objects is the basis for the suspension and subsequent refusal in the state cadastral registration and further registration of rights to real estate. In such a situation, the applicant must prove the violation of his rights.One of the fundamental characteristics of the Unified State Real Estate Register system is its orientation to interdepartmental interaction and data exchange with other information systems of federal and local executive and legislative authorities of the Russian Federation. As a result, if there are erroneous data in the real property cadastre data regarding the real estate object, such errors are automatically exported to other databases, and as a result, they carry a string of multiple errors in the information of the real estate cadastre and various registers and cadastres. In his article, the author examines and cites examples of often encountered in practice technical mistakes in the management of the real estate cadastre.