You can revise your code like below or use it...

SELECT 1
USE all

sele 2
USE ss
DO WHILE !EOF()
   m.a=name
   m.a1=p_o_box
   m.a2=Postal_cod
   m.a3=degree
   
   SELECT ALL
   APPEND BLANK
   REPLACE name WITH m.a;
           p_o_box WITH m.a1;
           postalcod WITH m.a2;
           degree WITH m.a3
   SELECT SS
   if .not. eof()
       skip 
   else
       exit
   endif
ENDDO
sele all
use
sele ss
use
return

if this a sub program, otherwise dont close your tables and removed return.....