You can try the following methods.
Order Month = MONTH([Order Date])
Sales Sum = CALCULATE(SUM(Table1[Sales Amount]),
ALLEXCEPT(Table1,Table1[Year],Table1[Order Month],Table1[Postal Code]))
Target = LOOKUPVALUE(Table2[Target],
Result = IF([Sales Sum]>=[Target],1,0)
Is this the result you expect?
Community Support Team _Charlotte
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