Not able to aggregate by datetime field

[VaishnaviMogal11]

Hi ,

I am using expression  as, 

=Aggr(if(trim(vin)=Trim(Only({[Map_view]} hash_vin)) AND
kbev_charge_session=Only({[Map_view]} charge_session),Timestamp(datetime)),datetime)

it is giving value as - only.  the values in datetime as eg. 

if i am using same expression in measure without aggregation then it works, but i want to use it as dimension in line chart. how can i do this?

Thank you!

[MK_QSL]

Add VIN and kbev_charge_session also in Aggr.