Optimize My Sql - sql-server

Question

I have a query in Epicor that I built using the BAQ Designer (which is just a gui for creating a SQL query). I recently made a change to add more data and now receive the following error.
The query processor ran out of internal resources and could not produce a query plan. This is a rare event and only expected for extremely complex queries or queries that reference a very large number of tables or partitions. Please simplify the query.
I'm sure the monster I created is not optimal and I could probably make some changes to make it better. If any of the experts could take a look and help it would be greatly appreciated as I am not a SQL expert, just good enough to break stuff.The SQL is:
With [Sales_Base] AS
(select
[SalesRep].[SalesRepCode] as [SalesRep_SalesRepCode],
[SalesRep].[Name] as [SalesRep_Name],
[InvcHead].[InvoiceNum] as [InvcHead_InvoiceNum],
[InvcHead].[InvoiceDate] as [InvcHead_InvoiceDate],
[InvcHead].[PONum] as [InvcHead_PONum],
[InvcDtl].[ExtPrice] as [InvcDtl_ExtPrice],
[Customer].[CustID] as [Customer_CustID],
[Customer].[Name] as [Customer_Name],
[SalesCat].[Description] as [SalesCat_Description],
[InvcDtl].[ProdCode] as [InvcDtl_ProdCode],
[SalesRep].[RoleCode] as [SalesRep_RoleCode],
[Customer].[GroupCode] as [Customer_GroupCode],
(Constants.Today) as [Calculated_Today],
(Constants.FirstDayOfMonth) as [Calculated_BOM],
(case
when DatePart(month,Constants.Today) in (1,4,7,10) then Constants.FirstDayOfMonth
when DatePart(month,Constants.Today) in (2,5,8,11) then DateAdd(month,-1,Constants.FirstDayOfMonth)
else DateAdd(month,-2,Constants.FirstDayOfMonth)
end) as [Calculated_BOQ],
(case
when DatePart(month,Constants.Today) = 1 then Constants.FirstDayOfMonth
when DatePart(month,Constants.Today) = 2 then DateAdd(month,-1,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 3 then DateAdd(month,-2,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 4 then DateAdd(month,-3,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 5 then DateAdd(month,-4,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 6 then DateAdd(month,-5,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 7 then DateAdd(month,-6,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 8 then DateAdd(month,-7,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 9 then DateAdd(month,-8,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 10 then DateAdd(month,-9,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 11 then DateAdd(month,-10,Constants.FirstDayOfMonth)
else DateAdd(month,-11,Constants.FirstDayOfMonth)
end) as [Calculated_BOY],
[Customer5].[CustID] as [Customer5_CustID],
[Customer5].[Name] as [Customer5_Name],
[Customer5].[GroupCode] as [Customer5_GroupCode],
[SalesRep].[EMailAddress] as [SalesRep_EMailAddress],
[InvcDtl].[InvoiceLine] as [InvcDtl_InvoiceLine],
(InvcDtl.ExtPrice + IsNull(InvcMisc.MiscAmt,0)) as [Calculated_InvcDtl_ExtPrice]
from Erp.SalesRep as SalesRep
left outer join Erp.InvcHead as InvcHead on
SalesRep.Company = InvcHead.Company
And
SalesRep.SalesRepCode = [Ice].entry(1,SalesRepList,'~')
Or
SalesRep.SalesRepCode = [Ice].entry(2,SalesRepList,'~')
Or
SalesRep.SalesRepCode = [Ice].entry(3,SalesRepList,'~')
Or
SalesRep.SalesRepCode = [Ice].entry(4,SalesRepList,'~')
Or
SalesRep.SalesRepCode = [Ice].entry(5,SalesRepList,'~')
and ( InvcHead.Posted = TRUE and InvcHead.InvoiceType <> 'DEP' )
left outer join Erp.InvcDtl as InvcDtl on
InvcHead.Company = InvcDtl.Company
And
InvcHead.InvoiceNum = InvcDtl.InvoiceNum
left outer join Erp.Customer as Customer on
InvcHead.Company = Customer.Company
And
InvcHead.SoldToCustNum = Customer.CustNum
left outer join Erp.SalesCat as SalesCat on
InvcDtl.Company = SalesCat.Company
And
InvcDtl.SalesCatID = SalesCat.SalesCatID
left outer join Erp.Customer as Customer5 on
InvcDtl.Company = Customer5.Company
And
InvcDtl.BTCustNum = Customer5.CustNum
left outer join Erp.InvcMisc as InvcMisc on
InvcDtl.Company = InvcMisc.Company
And
InvcDtl.InvoiceNum = InvcMisc.InvoiceNum
And
InvcDtl.InvoiceLine = InvcMisc.InvoiceLine
and ( InvcMisc.MiscCode = 'exp' )
where (SalesRep.RoleCode in ('sales', 'salesden', 'salesflx', 'salesmed', 'salespm') and SalesRep.SalesRepCode <> 'default' and SalesRep.SalesRepCode <> 'national' and SalesRep.SalesRepCode <> 'house' and SalesRep.SalesRepCode <> 'flexi' and SalesRep.SalesRepCode <> 'prescale' and SalesRep.InActive = FALSE))
,[Sales_Base_Add_MR] AS
(select
(Sales_Base5.SalesRep_SalesRepCode) as [Calculated_A_SalesRepCode],
(Sales_Base5.SalesRep_Name) as [Calculated_A_SalesRepName],
(Sales_Base5.InvcHead_InvoiceNum) as [Calculated_A_InvoiceNum],
(Sales_Base5.InvcHead_InvoiceDate) as [Calculated_A_InvoiceDate],
(Sales_Base5.InvcHead_PONum) as [Calculated_A_PONum],
(Sales_Base5.Calculated_InvcDtl_ExtPrice) as [Calculated_A_ExtPrice],
(Sales_Base5.Customer_CustID) as [Calculated_A_CustID],
(Sales_Base5.Customer_Name) as [Calculated_A_Cust],
(Sales_Base5.SalesCat_Description) as [Calculated_A_SalesCat],
(Sales_Base5.InvcDtl_ProdCode) as [Calculated_A_ProdCode],
(Sales_Base5.SalesRep_RoleCode) as [Calculated_A_RoleCode],
(Sales_Base5.Customer_GroupCode) as [Calculated_A_GroupCode],
(Sales_Base5.Calculated_Today) as [Calculated_A_Today],
(Sales_Base5.Calculated_BOM) as [Calculated_A_BOM],
(Sales_Base5.Calculated_BOQ) as [Calculated_A_BOQ],
(Sales_Base5.Calculated_BOY) as [Calculated_A_BOY],
(Sales_Base5.Customer5_CustID) as [Calculated_A_BTCustID],
(Sales_Base5.Customer5_Name) as [Calculated_A_BTCust],
(Sales_Base5.Customer5_GroupCode) as [Calculated_A_BTGroupCode],
[SalesRep2].[SalesRepCode] as [SalesRep2_SalesRepCode],
[SalesRep2].[Name] as [SalesRep2_Name],
[SalesRep2].[RoleCode] as [SalesRep2_RoleCode],
(Sales_Base5.SalesRep_EMailAddress) as [Calculated_A_Email],
(Sales_Base5.InvcDtl_InvoiceLine) as [Calculated_A_Line]
from Sales_Base as Sales_Base5
left outer join Erp.InvcHead as InvcHead1 on
Sales_Base5.InvcHead_InvoiceNum = InvcHead1.InvoiceNum
left outer join Erp.SalesRep as SalesRep2 on
InvcHead1.Company = SalesRep2.Company
And
[Ice].entry(1,SalesRepList,'~') = SalesRep2.SalesRepCode
Or
[Ice].entry(2,SalesRepList,'~') = SalesRep2.SalesRepCode
Or
[Ice].entry(3,SalesRepList,'~') = SalesRep2.SalesRepCode
Or
[Ice].entry(4,SalesRepList,'~') = SalesRep2.SalesRepCode
Or
[Ice].entry(5,SalesRepList,'~') = SalesRep2.SalesRepCode
and ( SalesRep2.RoleCode = 'mfgrep' )
where (Sales_Base5.Calculated_InvcDtl_ExtPrice <> 0 and Sales_Base5.InvcDtl_ProdCode <> ''))
,[Total] AS
(select
[Sales_Base_Add_MR3].[Calculated_A_InvoiceNum] as [Calculated_A_InvoiceNum],
(sum( Sales_Base_Add_MR3.Calculated_A_ExtPrice )) as [Calculated_Invoice_Total]
from Sales_Base_Add_MR as Sales_Base_Add_MR3
group by [Sales_Base_Add_MR3].[Calculated_A_InvoiceNum])
,[Key1] AS
(select
(Sales_Base_Add_MR.Calculated_A_SalesRepName) as [Calculated_Key1_SR],
(Sales_Base_Add_MR.Calculated_A_SalesRepName + Sales_Base_Add_MR.SalesRep2_Name) as [Calculated_Key1_Key]
from Sales_Base_Add_MR as Sales_Base_Add_MR
where (Sales_Base_Add_MR.SalesRep2_RoleCode = 'mfgrep')
group by (Sales_Base_Add_MR.Calculated_A_SalesRepName) as [Calculated_Key1_SR],
(Sales_Base_Add_MR.Calculated_A_SalesRepName + Sales_Base_Add_MR.SalesRep2_Name) as [Calculated_Key1_Key])
,[Key2] AS
(select
(Sales_Base_Add_MR2.Calculated_A_SalesRepName) as [Calculated_Key2_SR],
(Sales_Base_Add_MR2.Calculated_A_SalesRepName + Sales_Base_Add_MR2.Calculated_A_BTCustID) as [Calculated_Key2_Key]
from Sales_Base_Add_MR as Sales_Base_Add_MR2
where (Sales_Base_Add_MR2.Calculated_A_BTGroupCode in ('dend', 'flxd', 'medd', 'prsd'))
group by (Sales_Base_Add_MR2.Calculated_A_SalesRepName) as [Calculated_Key2_SR],
(Sales_Base_Add_MR2.Calculated_A_SalesRepName + Sales_Base_Add_MR2.Calculated_A_BTCustID) as [Calculated_Key2_Key])
,[B] AS
(select
(Sales_Base_Add_MR14.Calculated_A_SalesRepCode) as [Calculated_B_SalesRepCode],
(Sales_Base_Add_MR14.Calculated_A_SalesRepName) as [Calculated_B_SalesRepName],
(Sales_Base_Add_MR14.Calculated_A_InvoiceNum) as [Calculated_B_InvoiceNum],
(Sales_Base_Add_MR14.Calculated_A_InvoiceDate) as [Calculated_B_InvoiceDate],
(Sales_Base_Add_MR14.Calculated_A_PONum) as [Calculated_B_PONum],
(Total.Calculated_Invoice_Total) as [Calculated_B_OrderTotal],
(Sales_Base_Add_MR14.Calculated_A_CustID) as [Calculated_B_CustID],
(Sales_Base_Add_MR14.Calculated_A_Cust) as [Calculated_B_Cust],
(Sales_Base_Add_MR14.Calculated_A_RoleCode) as [Calculated_B_RoleCode],
(Sales_Base_Add_MR14.Calculated_A_GroupCode) as [Calculated_B_GroupCode],
(Sales_Base_Add_MR14.Calculated_A_Today) as [Calculated_B_Today],
(Sales_Base_Add_MR14.Calculated_A_BOM) as [Calculated_B_BOM],
(Sales_Base_Add_MR14.Calculated_A_BOQ) as [Calculated_B_BOQ],
(Sales_Base_Add_MR14.Calculated_A_BOY) as [Calculated_B_BOY],
(Sales_Base_Add_MR14.Calculated_A_BTCustID) as [Calculated_B_BTCustID],
(Sales_Base_Add_MR14.Calculated_A_BTCust) as [Calculated_B_BTCust],
(Sales_Base_Add_MR14.Calculated_A_BTGroupCode) as [Calculated_B_BTGroupCode],
(Sales_Base_Add_MR14.SalesRep2_SalesRepCode) as [Calculated_B_MRCode],
(Sales_Base_Add_MR14.SalesRep2_Name) as [Calculated_B_MRName],
(Sales_Base_Add_MR14.SalesRep2_RoleCode) as [Calculated_B_MRRoleCode],
(Sales_Base_Add_MR14.Calculated_A_Email) as [Calculated_B_Email],
(Key1.Calculated_Key1_Key) as [Calculated_B_Key],
(Key2.Calculated_Key2_Key) as [Calculated_B_Key2]
from Sales_Base_Add_MR as Sales_Base_Add_MR14
left outer join Key1 as Key1 on
Sales_Base_Add_MR14.Calculated_A_SalesRepName = Key1.Calculated_Key1_SR
And
Calculated_A_SalesRepName + SalesRep2_Name = Key1.Calculated_Key1_Key
left outer join Key2 as Key2 on
Sales_Base_Add_MR14.Calculated_A_SalesRepName = Key2.Calculated_Key2_SR
And
Calculated_A_SalesRepName + Calculated_A_BTCustID = Key2.Calculated_Key2_Key
left outer join Total as Total on
Sales_Base_Add_MR14.Calculated_A_InvoiceNum = Total.Calculated_A_InvoiceNum
group by (Sales_Base_Add_MR14.Calculated_A_SalesRepCode) as [Calculated_B_SalesRepCode],
(Sales_Base_Add_MR14.Calculated_A_SalesRepName) as [Calculated_B_SalesRepName],
(Sales_Base_Add_MR14.Calculated_A_InvoiceNum) as [Calculated_B_InvoiceNum],
(Sales_Base_Add_MR14.Calculated_A_InvoiceDate) as [Calculated_B_InvoiceDate],
(Sales_Base_Add_MR14.Calculated_A_PONum) as [Calculated_B_PONum],
(Total.Calculated_Invoice_Total) as [Calculated_B_OrderTotal],
(Sales_Base_Add_MR14.Calculated_A_CustID) as [Calculated_B_CustID],
(Sales_Base_Add_MR14.Calculated_A_Cust) as [Calculated_B_Cust],
(Sales_Base_Add_MR14.Calculated_A_RoleCode) as [Calculated_B_RoleCode],
(Sales_Base_Add_MR14.Calculated_A_GroupCode) as [Calculated_B_GroupCode],
(Sales_Base_Add_MR14.Calculated_A_Today) as [Calculated_B_Today],
(Sales_Base_Add_MR14.Calculated_A_BOM) as [Calculated_B_BOM],
(Sales_Base_Add_MR14.Calculated_A_BOQ) as [Calculated_B_BOQ],
(Sales_Base_Add_MR14.Calculated_A_BOY) as [Calculated_B_BOY],
(Sales_Base_Add_MR14.Calculated_A_BTCustID) as [Calculated_B_BTCustID],
(Sales_Base_Add_MR14.Calculated_A_BTCust) as [Calculated_B_BTCust],
(Sales_Base_Add_MR14.Calculated_A_BTGroupCode) as [Calculated_B_BTGroupCode],
(Sales_Base_Add_MR14.SalesRep2_SalesRepCode) as [Calculated_B_MRCode],
(Sales_Base_Add_MR14.SalesRep2_Name) as [Calculated_B_MRName],
(Sales_Base_Add_MR14.SalesRep2_RoleCode) as [Calculated_B_MRRoleCode],
(Sales_Base_Add_MR14.Calculated_A_Email) as [Calculated_B_Email],
(Key1.Calculated_Key1_Key) as [Calculated_B_Key],
(Key2.Calculated_Key2_Key) as [Calculated_B_Key2])
,[Sales_BOM] AS
(select
(B1.Calculated_B_SalesRepName) as [Calculated_Sales_BOM_Rep],
(sum( B1.Calculated_B_OrderTotal )) as [Calculated_Sales_BOM_Sum]
from B as B1
where (B1.Calculated_B_InvoiceDate >= B1.Calculated_B_BOM and B1.Calculated_B_InvoiceDate <= B1.Calculated_B_Today)
group by (B1.Calculated_B_SalesRepName) as [Calculated_Sales_BOM_Rep])
,[Sales_BOQ] AS
(select
(B2.Calculated_B_SalesRepName) as [Calculated_Sales_BOQ_Rep],
(sum( B2.Calculated_B_OrderTotal )) as [Calculated_Sales_BOQ_Sum]
from B as B2
where (B2.Calculated_B_InvoiceDate >= B2.Calculated_B_BOQ and B2.Calculated_B_InvoiceDate <= B2.Calculated_B_Today)
group by (B2.Calculated_B_SalesRepName) as [Calculated_Sales_BOQ_Rep])
,[Sales_BOY] AS
(select
(B3.Calculated_B_SalesRepName) as [Calculated_Sales_BOY_Rep],
(sum( B3.Calculated_B_OrderTotal )) as [Calculated_Sales_BOY_Sum]
from B as B3
where (B3.Calculated_B_InvoiceDate >= B3.Calculated_B_BOY and B3.Calculated_B_InvoiceDate <= B3.Calculated_B_Today)
group by (B3.Calculated_B_SalesRepName) as [Calculated_Sales_BOY_Rep])
,[MR_BOM] AS
(select
(sum( B5.Calculated_B_OrderTotal )) as [Calculated_MR_BOM_Sum],
(B5.Calculated_B_Key) as [Calculated_MR_BOM_Key]
from B as B5
where (B5.Calculated_B_InvoiceDate >= B5.Calculated_B_BOM and B5.Calculated_B_InvoiceDate <= B5.Calculated_B_Today and B5.Calculated_B_MRRoleCode = 'mfgrep')
group by (B5.Calculated_B_Key) as [Calculated_MR_BOM_Key])
,[MR_BOQ] AS
(select
(sum( B6.Calculated_B_OrderTotal )) as [Calculated_MR_BOQ_Sum],
(B6.Calculated_B_Key) as [Calculated_MR_BOQ_Key]
from B as B6
where (B6.Calculated_B_InvoiceDate >= B6.Calculated_B_BOQ and B6.Calculated_B_InvoiceDate <= B6.Calculated_B_Today and B6.Calculated_B_MRRoleCode = 'mfgrep')
group by (B6.Calculated_B_Key) as [Calculated_MR_BOQ_Key])
,[MR_BOY] AS
(select
(sum( B7.Calculated_B_OrderTotal )) as [Calculated_MR_BOY_Sum],
(B7.Calculated_B_Key) as [Calculated_MR_BOY_Key],
(B7.Calculated_B_MRName) as [Calculated_MR_BOY_MR]
from B as B7
where (B7.Calculated_B_InvoiceDate >= B7.Calculated_B_BOY and B7.Calculated_B_InvoiceDate <= B7.Calculated_B_Today and B7.Calculated_B_MRRoleCode = 'mfgrep')
group by (B7.Calculated_B_Key) as [Calculated_MR_BOY_Key],
(B7.Calculated_B_MRName) as [Calculated_MR_BOY_MR])
,[Dist_BOM] AS
(select
(sum( B9.Calculated_B_OrderTotal )) as [Calculated_Dist_BOM_Sum],
(B9.Calculated_B_Key2) as [Calculated_Dist_BOM_Key]
from B as B9
where (B9.Calculated_B_InvoiceDate >= B9.Calculated_B_BOM and B9.Calculated_B_InvoiceDate <= B9.Calculated_B_Today and B9.Calculated_B_BTGroupCode in ('dend', 'flxd', 'medd', 'prsd'))
group by (B9.Calculated_B_Key2) as [Calculated_Dist_BOM_Key])
,[Dist_BOQ] AS
(select
(sum( B10.Calculated_B_OrderTotal )) as [Calculated_Dist_BOQ_Sum],
(B10.Calculated_B_Key2) as [Calculated_Dist_BOQ_Key]
from B as B10
where (B10.Calculated_B_InvoiceDate >= B10.Calculated_B_BOQ and B10.Calculated_B_InvoiceDate <= B10.Calculated_B_Today and B10.Calculated_B_BTGroupCode in ('dend', 'flxd', 'medd', 'prsd'))
group by (B10.Calculated_B_Key2) as [Calculated_Dist_BOQ_Key])
,[Dist_BOY] AS
(select
(sum( B11.Calculated_B_OrderTotal )) as [Calculated_Dist_BOY_Sum],
(B11.Calculated_B_Key2) as [Calculated_Dist_BOY_Key],
(B11.Calculated_B_BTCustID) as [Calculated_Dist_BOY_ID],
(B11.Calculated_B_BTCust) as [Calculated_Dist_BOYDist],
(B11.Calculated_B_BTGroupCode) as [Calculated_Dist_BOY_Group]
from B as B11
where (B11.Calculated_B_InvoiceDate >= B11.Calculated_B_BOY and B11.Calculated_B_InvoiceDate <= B11.Calculated_B_Today and B11.Calculated_B_BTGroupCode in ('dend', 'flxd', 'medd', 'prsd'))
group by (B11.Calculated_B_Key2) as [Calculated_Dist_BOY_Key],
(B11.Calculated_B_BTCustID) as [Calculated_Dist_BOY_ID],
(B11.Calculated_B_BTCust) as [Calculated_Dist_BOYDist],
(B11.Calculated_B_BTGroupCode) as [Calculated_Dist_BOY_Group])
,[Sales_Group] AS
(select
(B12.Calculated_B_SalesRepName) as [Calculated_Sales_Group_SR],
(B12.Calculated_B_Email) as [Calculated_Sales_Group_Email]
from B as B12
group by (B12.Calculated_B_SalesRepName) as [Calculated_Sales_Group_SR],
(B12.Calculated_B_Email) as [Calculated_Sales_Group_Email])
,[MR_Group] AS
(select
(B13.Calculated_B_SalesRepName) as [Calculated_MR_Group_SR],
(B13.Calculated_B_Email) as [Calculated_MR_Group_Email],
(B13.Calculated_B_Key) as [Calculated_MR_Group_Key]
from B as B13
where (B13.Calculated_B_Key is not null)
group by (B13.Calculated_B_SalesRepName) as [Calculated_MR_Group_SR],
(B13.Calculated_B_Email) as [Calculated_MR_Group_Email],
(B13.Calculated_B_Key) as [Calculated_MR_Group_Key])
,[Dist_Group] AS
(select
(B15.Calculated_B_SalesRepName) as [Calculated_Dist_Group_SR],
(B15.Calculated_B_Email) as [Calculated_Dist_Group_Email],
(B15.Calculated_B_Key2) as [Calculated_Dist_Group_Key]
from B as B15
where (B15.Calculated_B_Key2 is not null)
group by (B15.Calculated_B_SalesRepName) as [Calculated_Dist_Group_SR],
(B15.Calculated_B_Email) as [Calculated_Dist_Group_Email],
(B15.Calculated_B_Key2) as [Calculated_Dist_Group_Key])
,[Report] AS
(select
(IsNull(B16.Calculated_B_SalesRepCode,'Sales')) as [Calculated_R_SalesRepCode],
(Sales_Group.Calculated_Sales_Group_SR) as [Calculated_R_SalesRepName],
(IsNull(B16.Calculated_B_InvoiceNum,9999999)) as [Calculated_R_InvoiceNum],
(IsNull(B16.Calculated_B_InvoiceDate, convert(date, '30991231', 112))) as [Calculated_R_InvoiceDate],
(B16.Calculated_B_PONum) as [Calculated_R_PONum],
(B16.Calculated_B_OrderTotal) as [Calculated_R_InvoiceTotal],
(B16.Calculated_B_CustID) as [Calculated_R_CustID],
(B16.Calculated_B_Cust) as [Calculated_R_Cust],
(B16.Calculated_B_RoleCode) as [Calculated_R_RoleCode],
(B16.Calculated_B_GroupCode) as [Calculated_R_GroupCode],
(B16.Calculated_B_BTCustID) as [Calculated_R_BTCustID],
(B16.Calculated_B_BTCust) as [Calculated_R_BTCust],
(B16.Calculated_B_BTGroupCode) as [Calculated_R_BTGroupCode],
(B16.Calculated_B_MRCode) as [Calculated_R_MRCode],
(B16.Calculated_B_MRName) as [Calculated_R_MRName],
(B16.Calculated_B_MRRoleCode) as [Calculated_R_MRRoleCode],
(Sales_Group.Calculated_Sales_Group_Email) as [Calculated_R_Email],
(B16.Calculated_B_Key) as [Calculated_R_Key],
(B16.Calculated_B_Key2) as [Calculated_R_Key2],
(Sales_BOM.Calculated_Sales_BOM_Sum) as [Calculated_R_SalesBOM],
(Sales_BOQ.Calculated_Sales_BOQ_Sum) as [Calculated_R_SalesBOQ],
(Sales_BOY.Calculated_Sales_BOY_Sum) as [Calculated_R_SalesBOY],
(NULL) as [Calculated_R_MRBOM],
(NULL) as [Calculated_R_MRBOQ],
(NULL) as [Calculated_R_MRBOY],
(NULL) as [Calculated_R_DistBOM],
(NULL) as [Calculated_R_DistBOQ],
(NULL) as [Calculated_R_DistBOY]
from Sales_Group as Sales_Group
left outer join B as B16 on
Sales_Group.Calculated_Sales_Group_SR = B16.Calculated_B_SalesRepName
and ( B16.Calculated_B_Key is null and B16.Calculated_B_Key2 is null and B16.Calculated_B_InvoiceDate >= B16.Calculated_B_BOM and B16.Calculated_B_InvoiceDate <= B16.Calculated_B_Today )
left outer join Sales_BOM as Sales_BOM on
Sales_Group.Calculated_Sales_Group_SR = Sales_BOM.Calculated_Sales_BOM_Rep
left outer join Sales_BOQ as Sales_BOQ on
Sales_Group.Calculated_Sales_Group_SR = Sales_BOQ.Calculated_Sales_BOQ_Rep
left outer join Sales_BOY as Sales_BOY on
Sales_Group.Calculated_Sales_Group_SR = Sales_BOY.Calculated_Sales_BOY_Rep
UNION
select
(B17.Calculated_B_SalesRepCode) as [Calculated_C_1],
(MR_Group.Calculated_MR_Group_SR) as [Calculated_C_2],
(B17.Calculated_B_InvoiceNum) as [Calculated_C_3],
(B17.Calculated_B_InvoiceDate) as [Calculated_C_4],
(B17.Calculated_B_PONum) as [Calculated_C_5],
(B17.Calculated_B_OrderTotal) as [Calculated_C_6],
(B17.Calculated_B_CustID) as [Calculated_C_9],
(B17.Calculated_B_Cust) as [Calculated_C_10],
(B17.Calculated_B_RoleCode) as [Calculated_C_13],
(B17.Calculated_B_GroupCode) as [Calculated_C_14],
(B17.Calculated_B_BTCustID) as [Calculated_C_15],
(B17.Calculated_B_BTCust) as [Calculated_C_16],
(B17.Calculated_B_BTGroupCode) as [Calculated_C_17],
(B17.Calculated_B_MRCode) as [Calculated_C_20],
(IsNull(B17.Calculated_B_MRName,MR_BOY.Calculated_MR_BOY_MR)) as [Calculated_C_21],
(B17.Calculated_B_MRRoleCode) as [Calculated_C_22],
(MR_Group.Calculated_MR_Group_Email) as [Calculated_C_23],
(MR_Group.Calculated_MR_Group_Key) as [Calculated_C_24],
(B17.Calculated_B_Key2) as [Calculated_C_25],
(Sales_BOM2.Calculated_Sales_BOM_Sum) as [Calculated_C_27],
(Sales_BOQ2.Calculated_Sales_BOQ_Sum) as [Calculated_C_28],
(Sales_BOY2.Calculated_Sales_BOY_Sum) as [Calculated_C_29],
(MR_BOM.Calculated_MR_BOM_Sum) as [Calculated_C_31],
(MR_BOQ.Calculated_MR_BOQ_Sum) as [Calculated_C_32],
(MR_BOY.Calculated_MR_BOY_Sum) as [Calculated_C_33],
(NULL) as [Calculated_C_35],
(NULL) as [Calculated_C_36],
(NULL) as [Calculated_C_37]
from MR_Group as MR_Group
left outer join B as B17 on
MR_Group.Calculated_MR_Group_Key = B17.Calculated_B_Key
and ( B17.Calculated_B_InvoiceDate >= B17.Calculated_B_BOM and B17.Calculated_B_InvoiceDate <= B17.Calculated_B_Today )
left outer join MR_BOM as MR_BOM on
MR_Group.Calculated_MR_Group_Key = MR_BOM.Calculated_MR_BOM_Key
left outer join MR_BOQ as MR_BOQ on
MR_Group.Calculated_MR_Group_Key = MR_BOQ.Calculated_MR_BOQ_Key
left outer join MR_BOY as MR_BOY on
MR_Group.Calculated_MR_Group_Key = MR_BOY.Calculated_MR_BOY_Key
left outer join Sales_BOM as Sales_BOM2 on
MR_Group.Calculated_MR_Group_SR = Sales_BOM2.Calculated_Sales_BOM_Rep
left outer join Sales_BOQ as Sales_BOQ2 on
MR_Group.Calculated_MR_Group_SR = Sales_BOQ2.Calculated_Sales_BOQ_Rep
left outer join Sales_BOY as Sales_BOY2 on
MR_Group.Calculated_MR_Group_SR = Sales_BOY2.Calculated_Sales_BOY_Rep
UNION
select
(B18.Calculated_B_SalesRepCode) as [Calculated_D_1],
(Dist_Group.Calculated_Dist_Group_SR) as [Calculated_D_2],
(B18.Calculated_B_InvoiceNum) as [Calculated_D_3],
(B18.Calculated_B_InvoiceDate) as [Calculated_D_4],
(B18.Calculated_B_PONum) as [Calculated_D_5],
(B18.Calculated_B_OrderTotal) as [Calculated_D_6],
(B18.Calculated_B_CustID) as [Calculated_D_9],
(B18.Calculated_B_Cust) as [Calculated_D_10],
(B18.Calculated_B_RoleCode) as [Calculated_D_13],
(B18.Calculated_B_GroupCode) as [Calculated_D_14],
(IsNull(B18.Calculated_B_BTCustID,Dist_BOY.Calculated_Dist_BOY_ID)) as [Calculated_D_15],
(IsNull(B18.Calculated_B_BTCust,Dist_BOY.Calculated_Dist_BOYDist)) as [Calculated_D_16],
(IsNull(B18.Calculated_B_BTGroupCode,Dist_BOY.Calculated_Dist_BOY_Group)) as [Calculated_D_17],
(B18.Calculated_B_MRCode) as [Calculated_D_20],
(B18.Calculated_B_MRName) as [Calculated_D_21],
(B18.Calculated_B_MRRoleCode) as [Calculated_D_22],
(Dist_Group.Calculated_Dist_Group_Email) as [Calculated_D_23],
(B18.Calculated_B_Key) as [Calculated_D_24],
(Dist_Group.Calculated_Dist_Group_Key) as [Calculated_D_25],
(Sales_BOM1.Calculated_Sales_BOM_Sum) as [Calculated_D_27],
(Sales_BOQ1.Calculated_Sales_BOQ_Sum) as [Calculated_D_28],
(Sales_BOY1.Calculated_Sales_BOY_Sum) as [Calculated_D_29],
(NULL) as [Calculated_D_31],
(NULL) as [Calculated_D_32],
(NULL) as [Calculated_D_33],
(Dist_BOM.Calculated_Dist_BOM_Sum) as [Calculated_D_35],
(Dist_BOQ.Calculated_Dist_BOQ_Sum) as [Calculated_D_36],
(Dist_BOY.Calculated_Dist_BOY_Sum) as [Calculated_D_37]
from Dist_Group as Dist_Group
left outer join B as B18 on
Dist_Group.Calculated_Dist_Group_Key = B18.Calculated_B_Key2
and ( B18.Calculated_B_InvoiceDate >= B18.Calculated_B_BOM and B18.Calculated_B_InvoiceDate <= B18.Calculated_B_Today )
left outer join Dist_BOM as Dist_BOM on
Dist_Group.Calculated_Dist_Group_Key = Dist_BOM.Calculated_Dist_BOM_Key
left outer join Dist_BOQ as Dist_BOQ on
Dist_Group.Calculated_Dist_Group_Key = Dist_BOQ.Calculated_Dist_BOQ_Key
left outer join Dist_BOY as Dist_BOY on
Dist_Group.Calculated_Dist_Group_Key = Dist_BOY.Calculated_Dist_BOY_Key
left outer join Sales_BOM as Sales_BOM1 on
Dist_Group.Calculated_Dist_Group_SR = Sales_BOM1.Calculated_Sales_BOM_Rep
left outer join Sales_BOQ as Sales_BOQ1 on
Dist_Group.Calculated_Dist_Group_SR = Sales_BOQ1.Calculated_Sales_BOQ_Rep
left outer join Sales_BOY as Sales_BOY1 on
Dist_Group.Calculated_Dist_Group_SR = Sales_BOY1.Calculated_Sales_BOY_Rep)
select
[Report].[Calculated_R_SalesRepCode] as [Calculated_R_SalesRepCode],
[Report].[Calculated_R_SalesRepName] as [Calculated_R_SalesRepName],
[Report].[Calculated_R_InvoiceNum] as [Calculated_R_InvoiceNum],
[Report].[Calculated_R_InvoiceDate] as [Calculated_R_InvoiceDate],
[Report].[Calculated_R_PONum] as [Calculated_R_PONum],
[Report].[Calculated_R_InvoiceTotal] as [Calculated_R_InvoiceTotal],
[Report].[Calculated_R_CustID] as [Calculated_R_CustID],
[Report].[Calculated_R_Cust] as [Calculated_R_Cust],
[Report].[Calculated_R_RoleCode] as [Calculated_R_RoleCode],
[Report].[Calculated_R_GroupCode] as [Calculated_R_GroupCode],
[Report].[Calculated_R_BTCustID] as [Calculated_R_BTCustID],
[Report].[Calculated_R_BTCust] as [Calculated_R_BTCust],
[Report].[Calculated_R_BTGroupCode] as [Calculated_R_BTGroupCode],
[Report].[Calculated_R_MRCode] as [Calculated_R_MRCode],
[Report].[Calculated_R_MRName] as [Calculated_R_MRName],
[Report].[Calculated_R_MRRoleCode] as [Calculated_R_MRRoleCode],
[Report].[Calculated_R_Email] as [Calculated_R_Email],
[Report].[Calculated_R_Key] as [Calculated_R_Key],
[Report].[Calculated_R_Key2] as [Calculated_R_Key2],
[Report].[Calculated_R_SalesBOM] as [Calculated_R_SalesBOM],
[Report].[Calculated_R_SalesBOQ] as [Calculated_R_SalesBOQ],
[Report].[Calculated_R_SalesBOY] as [Calculated_R_SalesBOY],
[Report].[Calculated_R_MRBOM] as [Calculated_R_MRBOM],
[Report].[Calculated_R_MRBOQ] as [Calculated_R_MRBOQ],
[Report].[Calculated_R_MRBOY] as [Calculated_R_MRBOY],
[Report].[Calculated_R_DistBOM] as [Calculated_R_DistBOM],
[Report].[Calculated_R_DistBOQ] as [Calculated_R_DistBOQ],
[Report].[Calculated_R_DistBOY] as [Calculated_R_DistBOY]
from Report as Report

Answer 1

a) Look for simplifying parts of the query. For example, this part can be vastly simplified:
(case
when DatePart(month,Constants.Today) = 1 then Constants.FirstDayOfMonth
when DatePart(month,Constants.Today) = 2 then DateAdd(month,-1,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 3 then DateAdd(month,-2,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 4 then DateAdd(month,-3,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 5 then DateAdd(month,-4,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 6 then DateAdd(month,-5,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 7 then DateAdd(month,-6,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 8 then DateAdd(month,-7,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 9 then DateAdd(month,-8,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 10 then DateAdd(month,-9,Constants.FirstDayOfMonth)
when DatePart(month,Constants.Today) = 11 then DateAdd(month,-10,Constants.FirstDayOfMonth)
else DateAdd(month,-11,Constants.FirstDayOfMonth)
end) as [Calculated_BOY],
Could be instead
(case
when DatePart(month,Constants.Today) = 12 then Constants.FirstDayOfMonth
else DateAdd(month, - ( DatePart(month,Constants.Today) - 1), Constants.FirstDayOfMonth) end ) as [Calculated_BOY]
b) Separate the subselects into temporary tables, particularly those that you can verify produce relatively small resultsets (let's say thousand of rows or less). Providing those temporary tables to the select instead of subselects will help the query processor

Answer 2

I really wonder what is
[Ice].entry(1,SalesRepList,'~')
if it is a function, you can work on it.
But it seems to be creating constant values, not dynamic per row
I see that the query is formed of multiple CTE expressions
The Report CTE is formed of UNIONs can be converted to UNION ALLs if possible
And many GROUP By for calculations
Perhaps those can be converted to new aggregation syntax with SUM() function using PARTITION BY clause