Output Length
Procedure
If you need only a part of the symbol value, or the output has to fit into a box on the screen without exceeding the edges of this area, then you can use an output length specification to define how many bytes should be copied from the value.
&symbol(length)&
If a length specified is greater than the current length of the value, then spaces are appended to the symbol value.
You can use the asterisk character (*) to specify the length of a program symbol. The value of the symbol is then returned using the output length defined in the ABAP Dictionary.
Syntax:
&symbol(*)&