multipule sumproduct formula errors

I want a cell to automatically display a text (T1, T2, T3, T4) based on whether or not the input in another cell is found in a table. (ie 020 = T2; 310 = T3 ect)

=IF(SUMPRODUCT(--(C3=I3:I16))>0,"T1") will list for just one category, but I cant get the formula to accept multiple arrays AND specific inputs when the value is in that array.
=IF(SUMPRODUCT(--(C3=I3:I16))>0,"T1")*(--(C3=J3:J16))>0,"T2") ect. What am I doing wrong?

*this is for tracking workload, I want the claim identifier to trigger the category input so a separate calculation will populate the workload credit.

this should be the unprotected template. I want the week 1/week 2 tabs to automatically calculate points per EP/Contentions/Tier the way the credit tracker tab does. The standards tab contains the reference tables used for look up. I tried an Aggregate formula last night but keep getting the NUM! error.

That sorta worked.....the fix initially generated the T3, but wont change or update when a different EP code is entered.

new workbook with formula corrections

That one worked!!!! Thank you