Done that already actually. The one question I have from that document relates to cases when a flight ends outside the IFPS area. On some of the lists of AFTN addresses at the back of the document, the final address is for the FIR and not the arrival airfield.
Is one always supposed to add the arrival airfield or does the example above mean that the parent FIR will pass flight plan details to the destination airfield within that FIR?