How to put additional rule in the code below

[EmilijaN]

Hello guys, 

I need help with this code:

FuelAmount_Monthly =

Var

Pomosna1=MINX(FILTER(Trip_Activity,Trip_Activity[Month&Year]=EARLIER(Trip_Activity[Month&Year]) && Trip_Activity[ID]=EARLIER(Trip_Activity[ID])),Trip_Activity[Index])

var

Pomosna2=CALCULATE (

SELECTEDVALUE ( FuelAmount_Monthly[sum]),

FILTER (

FuelAmount_Monthly,(FuelAmount_Monthly[Month&Year]=Trip_Activity[Month&Year] && FuelAmount_Monthly[ID]=Trip_Activity[ID]

)))

return

if([Index]=Pomosna1, Pomosna2,BLANK())

What exactely I need is: I need the rows that are not maching the code. Or, if there is rows that are not meching by ID, than try with TruckId. But I do not know how to put rule with TruckId in this code.

Any suggestions?

Thank you!

[lbendlin]

Please provide sanitized sample data that fully covers your issue. Paste the data into a table in your post or use one of the file services. Please show the expected outcome.