Questions & Answers about Ayşe takvim girişi eklediğini, Melis de dosya eki gönderdiğini iletti.
As written, the default reading is that Ayşe and Melis themselves reported things: the final verb iletti is shared across both subjects (i.e., “Ayşe … iletti, Melis de … iletti”). If you wanted “Someone else conveyed that Ayşe added … and that Melis sent …,” you would mark Ayşe and Melis as the subjects of the embedded clauses with genitive:
They are nominalized content clauses (“that s/he added/sent”) formed with -DIK plus possessive and case:
- ekle-diğ-i-ni = ekle- (add) + -DIK (nominalizer; here -diğ-) + 3SG.POSS -i + ACC -(n)i → “that s/he added”
- gönder-diğ-i-ni = gönder- (send) + -DIK + 3SG.POSS + ACC → “that s/he sent”
The whole clause functions as the direct object of iletti (“conveyed/reported (that) …”).