Question : How to resolve Error 107: the column prefix 'tblExclusion' does not match with a table name or alias name used in the query ?

Do you know how I can fix a syntax error:

Error 107: the column prefix 'tblExclusion' does not match with a table name or alias name used in the query

I believe this error is caused by the last line below:

CREATE PROCEDURE dbo.procSpACSExcl
@RptYear int
AS
If  Exists(SELECT * FROM dbo.SYSOBJECTS WHERE NAME = 'tblSpACS' AND TYPE = 'U')
DROP TABLE tblSpACS
SELECT Null AS [Job Number], Null AS [Bus. Unit], CASE WHEN LEN(C.SSN) = 0 THEN C.TaxID ELSE C.SSN END AS [SSN],  P.PropertyType AS [Prop CD],
Right(C.OfficeNumber,3) + ' ' + C.CustomerNumber AS [Acct Number],
P.CUSIP AS [Cusip Number], UPPER(P.SecurityName) AS [Cusip Name], P.Symbol AS [User 1], P.PlanNumber AS [User 2]
INTO tblSpACS
FROM tblStatesAll  As S INNER JOIN (tblCustomers As C  INNER JOIN tblProducts As P  ON C.CustomerNumber = P .CustomerNumber AND C.OfficeNumber = P.OfficeNumber)
ON S.StateFS = C.ResStateCode
WHERE (S.FallCycle= 0 AND C.RedFlag = 'N' AND LEN(P.InsuranceContract) = 0) AND
C.CustomerNumber NOT IN (SELECT tblExclusion.CustomerNumber FROM tblExclusion)
AND C.OfficeNumber NOT IN (SELECT tblExclusion.OfficeNumber FROM tblExclusion) AND
              ((P .PropertyType='MUTUAL FUND' AND C.DateLost <= CAST((@RptYear - S.MutualFS) AS VARCHAR) + '-12-31' AND LEN(P.IRACode) = 0 AND (P.Quantity > 0 OR P.CashBalance > 0)) OR
               (P .PropertyType='FIXED INCOME' AND C.DateLost <= CAST((@RptYear - S.BondsFS) AS VARCHAR) + '-12-31' AND LEN(P.IRACode) > 0 AND (P.Quantity > 0 OR P.CashBalance > 0) AND
               (C.DateOfBirth <= CAST(((@RptYear - S.IRAFS)-71) AS VARCHAR) + '-06-30')))
AND (tblExclusion.CustomerNumber IS NOT NULL)

Answer : How to resolve Error 107: the column prefix 'tblExclusion' does not match with a table name or alias name used in the query ?

--try

CREATE PROCEDURE dbo.procSpACSExcl
@RptYear int
AS
If  Exists(SELECT * FROM dbo.SYSOBJECTS WHERE NAME = 'tblSpACS' AND TYPE = 'U')
DROP TABLE tblSpACS
SELECT Null AS [Job Number], Null AS [Bus. Unit], CASE WHEN LEN(C.SSN) = 0 THEN C.TaxID ELSE C.SSN END AS [SSN],  P.PropertyType AS [Prop CD],
Right(C.OfficeNumber,3) + ' ' + C.CustomerNumber AS [Acct Number],
P.CUSIP AS [Cusip Number], UPPER(P.SecurityName) AS [Cusip Name], P.Symbol AS [User 1], P.PlanNumber AS [User 2]
INTO tblSpACS
FROM tblStatesAll  As S INNER JOIN (tblCustomers As C  INNER JOIN tblProducts As P  ON C.CustomerNumber = P .CustomerNumber AND C.OfficeNumber = P.OfficeNumber)
ON S.StateFS = C.ResStateCode
WHERE (S.FallCycle= 0 AND C.RedFlag = 'N' AND LEN(P.InsuranceContract) = 0) AND
C.CustomerNumber NOT IN (SELECT CustomerNumber FROM tblExclusion where CustomerNumber IS NOT NULL)
AND C.OfficeNumber NOT IN (SELECT OfficeNumber FROM tblExclusion) AND
              ((P .PropertyType='MUTUAL FUND' AND C.DateLost <= CAST((@RptYear - S.MutualFS) AS VARCHAR) + '-12-31' AND LEN(P.IRACode) = 0 AND (P.Quantity > 0 OR P.CashBalance > 0)) OR
               (P .PropertyType='FIXED INCOME' AND C.DateLost <= CAST((@RptYear - S.BondsFS) AS VARCHAR) + '-12-31' AND LEN(P.IRACode) > 0 AND (P.Quantity > 0 OR P.CashBalance > 0) AND
               (C.DateOfBirth <= CAST(((@RptYear - S.IRAFS)-71) AS VARCHAR) + '-06-30')))
AND (c.CustomerNumber IS NOT NULL)