Yes, indeed, if I change syntax in the python-script for number-only payloads, they are no longer unknown.
d = { '0CD102':['sonoff_button_home_a','ON','false'],
'0CD108':['sonoff_button_home_b','ON','false'],
'0CD101':['sonoff_button_home_c','ON','false'],
'0CD104':['sonoff_button_home_d','ON','false'],
'EDB0C1':['sonoff_button_key_M_arm_away','ON','false'],
'EDB0C2':['sonoff_button_key_M_disarm','ON','false'],
'EDB0C4':['sonoff_button_key_M_arm_home','ON','false'],
'EDB0C8':['sonoff_button_key_M_sos','ON','false'],
'FBFF1E':['sonoff_pir_keller_tuere','ON','true'],
'FC302E':['sonoff_pir_keller_fenster','ON','true'],
'D2792E':['sonoff_pir_eingang_aussen','ON','true'],
'14CA83':['sonoff_housedoor_lockstatus','ON','true'],
'14CA89':['sonoff_housedoor_lockstatus','OFF','true'],
'CA7169':['sonoff_water_waschmaschine','ON','true'],
623476:['sonoff_fire_waschkueche','ON','true'],
620602:['somfy_cover_alle_storen_up','ON','false'],
620604:['somfy_cover_alle_storen_stop','ON','false'],
620608:['somfy_cover_alle_storen_down','ON','false'],
620612:['somfy_cover_sitzplatz_up','ON','false'],
620614:['somfy_cover_sitzplatz_stop','ON','false'],
620618:['somfy_cover_sitzplatz_down','ON','false'],
but syntax change only for numeric paiyloads, payloads with letters must kept in â ', otherwise these payload are not recognized.