Hello Sam
Apologies for delay reply.
(a) It is FI-GL Assessment & posting periods are open for FI & CO end.
(b) The error what i am getting during T.Code FAGLGA15 is below.
The segment contains no receivers
Message no. GA733
(c) This error appearing only when i use posting period 13 (special periods).
(d) No restriction in authorizations
Kindly revert
Regards
Anil