The application describes a method for sending data which involves the reception by a communication device of a first piece of information which represents the first change in a data record and of a first data change indicator associated with the first change in the data record, making by the communication device of a second change in the first changed data record to generate a second changed data record, the ascertainment by the communication device of a second data change indicator based on the first data change indicator, and sending by the communication device of a second piece of information which represents the second change in the first changed data record to produce the second changed data record, and of the second data change indicator.