Hi i found an error with the location name, they are different for the serverfarm, like this i sucessufull created my function app using the CLI:

C:\Users\jesus\Documents\AirCont\AircontB> az login

C:\Users\jesus\Documents\AirCont\AircontB>az storage account create --name aircontstorage43210 --resource-group aircontfullstack --location "East US 2" --sku Standard_LRS --kind StorageV2 --access-tier Cool --https-only true

C:\Users\jesus\Documents\AirCont\AircontB> az functionapp list-consumption-locations

PS C:\Users\jesus\Documents\AirCont\AircontB> az functionapp create --name AircontBackFn --storage-account aircontstorage43210 --resource-group aircontfullstack --consumption-plan-location "eastus2" --runtime dotnet --functions-version 4 --os-type Windows