When an error occurs, DP4 outputs an error message. For example, if there is insufficient memory to run a program, DP4 informs the user with a message. If a parent check on a table reveals that there is no customer record for an order, a message such as "Customer does not exist" is displayed.
DP4 error messages are stored as maps on the system database. To translate these error messages, you can export them to a file and translate them in the same way as for the maps of your application.