You can replace the automatically generated error messages, declare explicit error messages, or specify help on a Screen, a Data Element or an error message. These lines are associated with a Dialog or a Screen (standard Screen or TUI client).
Moreover, if this line is not correct, this column also displays an error or warning symbol, depending on the severity of the error. A hover help indicates the source of the error.
Click
the Link field and the selection icon to display
the instances available for the selected line type. Select one of
them and click OK. This instance is then displayed
in the Link field. To copy it out to the Description field,
click the icon.
After you have specified your error and help messages, you must generate them.