Procedure or function has too many arguments specified SSRS
<p>For some reason I am able to run my <code>SELECT</code> statement in SSMS, but when I use it in SSRS then it says <code>Procedure or function has too many arguments specified</code>.
If I choose only one parameter - it gives me the result. But if I choose 2 or more - I got an error.</p>
<p>This is my whole code:</p>
<pre><code>DECLARE @ClassCode varchar(max) = '31439,739889'
CREATE TABLE #PolicyNumbers  (PolicyNumber varchar(50))
INSERT INTO #PolicyNumbers SELECT  PolicyNumber FROM tblClassCodesPlazaCommercial T1
WHERE NOT EXISTS (SELECT 1 FROM tblClassCodesPlazaCommercial T2  
WHERE  T1.PolicyNumber = T2.PolicyNumber
        AND ClassCode  IN 
        (SELECT * FROM [dbo].[StringOfStringsToTable](@ClassCode,','))) 
; WITH Earned_to_date AS (
   SELECT Cast('11-30-2016' AS DATE) AS Earned_to_date
), policy_data AS (
    SELECT
        PolicyNumber
,       Cast(PolicyEffectiveDate AS DATE) AS PolicyEffectiveDate
,       Cast(PolicyExpirationDate AS DATE) AS PolicyExpirationDate
,       WrittenPremium
        FROM PlazaInsuranceWPDataSet pid
        WHERE  NOT EXISTS (SELECT PolicyNumber FROM #PolicyNumbers pn WHERE pn.PolicyNumber = pid.PolicyNumber )
        AND State IN ('CA','NV','AZ') 
        
) 

, digits AS (
SELECT digit
   FROM (VALUES (0), (1), (2), (3), (4)
,      (5), (6), (7), (8), (9)) AS z2 (digit)
), numbers AS (
SELECT 1000 * d4.digit + 100 * d3.digit + 10 * d2.digit + d1.digit AS number
    FROM digits AS d1
    CROSS JOIN digits AS d2
    CROSS JOIN digits AS d3
    CROSS JOIN digits AS d4
), calendar AS (
SELECT
    DateAdd(month, number, '1753-01-01') AS month_of
,   DateAdd(month, number, '1753-02-01') AS month_after
    FROM numbers
), policy_dates AS (
SELECT
   PolicyNumber
,   CASE
        WHEN month_of &lt; PolicyEffectiveDate THEN PolicyEffectiveDate
        ELSE month_of
    END AS StartRiskMonth
,   CASE
       WHEN PolicyExpirationDate &lt; month_after THEN PolicyExpirationDate
       WHEN Earned_to_date.Earned_to_date &lt; month_after THEN Earned_to_date
       ELSE month_after
    END AS EndRiskMonth
,   DateDiff(day, PolicyEffectiveDate, PolicyExpirationDate) AS policy_days
,   WrittenPremium
    FROM policy_data
    JOIN calendar
        ON (policy_data.PolicyEffectiveDate &lt; calendar.month_after
        AND calendar.month_of &lt; policy_data.PolicyExpirationDate)
    CROSS JOIN Earned_to_date
    WHERE  month_of &lt; Earned_to_date
)
SELECT      PolicyNumber,
            --ClassCode,
            Year(StartRiskMonth) as YearStartRisk, 
            Month(StartRiskMonth) as MonthStartRisk,
            c.YearNum,c.MonthNum,
            convert(varchar(7), StartRiskMonth, 120) as RiskMonth,
            sum(WrittenPremium * DateDiff(day, StartRiskMonth, EndRiskMonth) / policy_days) as EarnedPremium
FROM        tblCalendar  c
LEFT  JOIN policy_dates l ON c.YearNum=Year(l.StartRiskMonth) and c.MonthNum = Month(l.StartRiskMonth) AND l.StartRiskMonth BETWEEN '01-01-2012' AND  '10-31-2016'
WHERE c.YearNum Not IN (2017) --and PolicyNumber = 'PACA1000191-00'
GROUP BY    convert(varchar(7), StartRiskMonth, 120),
            Year(StartRiskMonth) , Month(StartRiskMonth),
            c.YearNum,c.MonthNum,PolicyNumber
ORDER BY    PolicyNumber,c.YearNum,c.MonthNum
DROP TABLE #PolicyNumbers
</code></pre>
<p>I am using the split function that works fine:</p>
<pre><code>ALTER FUNCTION [dbo].[StringOfStringsToTable]
    (
        @Strings varchar(8000),
        @Separator char(1)
    )
RETURNS @StringTable table (String varchar(500))
AS
    BEGIN

        DECLARE @String varchar(500), @Pos int

        SET @Strings = LTRIM(RTRIM(@Strings))+ @Separator
        SET @Pos = CHARINDEX(@Separator, @Strings, 1)

            WHILE @Pos &gt; 0
            BEGIN
                SET @String = LTRIM(RTRIM(LEFT(@Strings, @Pos - 1)))

                IF @String &lt;&gt; '' INSERT INTO @StringTable VALUES (@String)

                SET @Strings = RIGHT(@Strings, LEN(@Strings) - @Pos)
                SET @Pos = CHARINDEX(@Separator, @Strings, 1)
            END

    RETURN
    END
    
</code></pre>
<p>This is the result set in SSMS:
<a href="https://i.stack.imgur.com/z329g.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/z329g.png" alt="enter image description here" /></a></p>
<p>And there is an error:</p>
<p><a href="https://i.stack.imgur.com/GQDhu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GQDhu.png" alt="enter image description here" /></a></p>
<p>In a query designer in SSRS if I declare variable at the top with multiple value parameter than it works.</p>
<pre><code>DECLARE @ClassCode varchar(100) = '31439,739889,33528,40199,21289,40427,42594,5283,5251,34489' 
</code></pre>
<p><a href="https://i.stack.imgur.com/QJqQh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QJqQh.png" alt="enter image description here" /></a></p>
<p>But if I take off that statement than I receive the same error.
What is going on here?</p>