Technical Interview Question:

Name the three different kinds of messages in the R/3 system. What is the difference between them?

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A message can have five different types. These message types have the following effects during list processing:

A (=Abend):
The system displays a message of this message type in a dialog window. After the user confirms the message using ENTER, the system terminates the entire transaction (for example SE38).

E (=Error) or W (=Warning):
The system displays a message of this message type in the status line. After the user chooses ENTER, the system acts as follows:
While creating the basic list, the system terminates the report.
While creating a secondary list, the system terminates the corresponding processing block and keeps displaying the previous list level.

I (=Information):
The system displays a message of this message type in a dialog window. After the user chooses ENTER , the system resumes processing at the current program position.

S (=Success):
The system displays a message of this message type on the output screen in the status line of the currently created list.