A data repair method and system. The method includes enabling by a computing system for a user, access to the computing system. The computing system comprises a database. The computing system retrieves from the database, first data associated with the user. The computing system generates a first data object from the first data. The computing system analyzes the first data object. The computing system determines that the first data object comprises an invalid data value. The computing system determines a first data value comprising a valid data value. The computing system retrieves the first data value from the database. The computing system replaces the invalid data value with said first data value. The computing system generates from the first data object, a first updated data object comprising the first data value. The computing system stores the first updated data object.