Merge Month function in SUMIFS function

John,

I have attached a file with required output.

Result in E4 of Sheet1
I want to add column C data (sheet FinancialData) if the month (column E) is January and column L should have '1' (Sum=120)

Result in E5 of Sheet1
I want to add column C data (sheet FinancialData) if the month (column E) is February and column L should have '1' (Sum=18)