data type / data element for RFC destination

Question

Is there any default created data type / element for destination? I know that I can use string, but string is very wide open. Is there any limit in destinations name?

DATA: dest type ???.

CALL FUNCTION 'NAME'
    DESTINATION dest.

Answer 1

It is common to use the data element RFCDEST for this.

Answer 2

Why not just STRING? I usualy use STRING.