<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by peter42:
That is not true, NH and AC credit only partial mileage for low eco booking classes in their program, but LH gives you full miles for the same flights.</font>
That's why I said that bilateral agreements may be more restrictive or generous.
The accounting of miles is extremely complicated within any alliance because there is only broad-brush harmonisation. I wanted to give the original poster the general policy, without going into the excruciating detail of every *A bilateral agreement.