Sql sorting by date doesn't work

Hi,
I've got this query but I'm not able to find the results in the right ordering sorting by the date:

select count(*) as numero_righe
,CONVERT (varchar(10), st.CREATEDDATETIME, 103) DataOrdine
CONVERT (varchar(10), st.DELIVERYDATE, 103) DataRichiestaSpedizione
from SALESTABLE st
inner join SALESLINE sl on st.DATAAREAID = sl.DATAAREAID and st.PARTITION = sl.PARTITION and st.SALESID = sl.SALESID left join WHSLOADLINE ll on st.DATAAREAID = ll.DATAAREAID and st.PARTITION = ll.PARTITION and st.SALESID = ll.ORDERNUM
where st.DATAAREAID = '800'
and st.PARTITION = 5637144576
and sl.ITEMID not like '800%'
and sl.SALESSTATUS = 1
and ll.ORDERNUM is null
and sl.DLVMODE not like 'Drop%'
and st.SALESTYPE = 3
group by CONVERT (varchar(10), st.CREATEDDATETIME, 103) , CONVERT (varchar(10), st.DELIVERYDATE, 103)
order by DataOrdine]

numero_righe DataOrdine DataRichiestaSpedizione 2 03/06/2024 05/07/2024 1 03/06/2024 12/07/2024 5 03/06/2024 31/07/2024 1 03/07/2024 03/07/2024 57 04/07/2024 29/08/2024 49 05/07/2024 05/07/2024 32 05/07/2024 19/08/2024 1 07/05/2024 07/05/2024 11 10/07/2024 28/08/2024 526 10/07/2024 30/08/2024

As you can see the column DataOrdine is not sorted as I'm expected.
Could you help me to understand where is the error?

tks

creatinf query with dates and have sorting like described before

ORDER BY st.CREATEDDATETIME

in that case I can't manage the group by in the right way because I've to put also that filed in the group and the aggregations will be also tih the time and not only with the date.
I need to aggregate only by the day and sorting by the day not by day and time

ORDER BY CAST(st.CREATEDDATETIME AS date)