If AL7, AL8, etc. were values, not cell addresses, you could put them in an array constant like this, but you'd still need to put quotes around each one. If they are cell addresses, then you need to do it as I showed in post 2. The Control+Shift+Enter will be required unless you have Excel 365 with the new calculation engine. But the formula in post 3 will not work as shown.Try
=SUM(SUMIFS('Finance'!$M:$M,'Finance'!$V:$V,{AL7,AL8,AL9,AL10,AL11,AL12,AL13},'Finance'!$C:$C, D29))