I have this formula but it will find unique value from only that range. How can I find unique value from another column base on that SUMPRODUCT function?

=SUMPRODUCT(--(Table2[Customer Type]="KEY"),--(Table2[SO Status]="Pending"),--(Table2[Time]=230) give me 97 unique values

I want to find unique value on Table2[CustomerNumber] based on above criteria.

Thank you!