SSIS Error: External Column for Source out of sync with Data Source columns; How do I remove External Columns?

Question

Query should output a certain list of Items, along with info like store information and manager info. Uses a Cursor to flip through list of various different levels of management, selects relevant information, then emails that person what the query returned for their district/region/store.

My issue is with the SSIS leg of the journey. Although the code acts like it runs, if I run Itemdata.dtsx separately (so as to see errors), it throws me the error:

"Warning: The external columns for component "Sources-ItemData"(1) are out of sync with the data source columns. The external column "RM_Email"(49) needs to be removed from the external columns. The external column "SM_Email"(46) needs to be removed from the external columns. The external column "DM_Email"(43) needs to be removed from the external columns."

This results in SQL Server Mngt Studio saying it ran, but the emails' contents are nothing but the table headers; no data, and the table headers don't change regardless of what I do.

I have eliminated these columns from any mention in my source code (posted below) and in the Table it uses. What am I missing?

BEGIN

SET NOCOUNT ON;

DECLARE @ProcedureName     varchar(255)
DECLARE @ExportFolder      varchar(255)
DECLARE @TempFolder        varchar(255)
DECLARE @WarningLevel      varchar(255) = 'log'
DECLARE @MsgDescription    varchar(2000) = ''
DECLARE @RecordCount       int = 0  
DECLARE @ReportDate        date = getdate()
DECLARE @Begdate           date = convert(date,(dateadd(month,-1,getdate())))
DECLARE @Enddate           date = convert(date,(dateadd(day,-1,getdate())))
DECLARE @Siteid            int 
DECLARE @Subject           varchar(75) = ''
DECLARE @Body              varchar(50) = ''
DECLARE @RMLastName        varchar(25)
DECLARE @RMFirstName           varchar(25)
DECLARE @RegionKey         int
DECLARE @DistrictKey       int
DECLARE @Email             varchar(50)

BEGIN TRY 
            --Table used as data source for each pass
            Truncate Table Example.dbo.itemdata


--Send reports to Regional Managers by building Cursor RMListCursor, 
--then running SELECT statement against each name (using @RMLastName and @RMFirstName to discern), 
--then emails results of SELECT statement to that Regional Manager. 
--Goes through CursorList, then ends. 
BEGIN
    --Set cursor for RM Email; returns all regional managers. 
DECLARE RMListCursor CURSOR FOR 
SELECT distinct t.lastname, t.firstname, t.Email
FROM Example.[dbo].[tblUser] t
JOIN example.dbo.vStoreDistrictRegionActive vs
    ON t.LastName = vs.RMLastName and t.FirstName = vs.RMFirstName 
ORDER BY LastName

OPEN RMListCursor

FETCH NEXT FROM RMListCursor
INTO @RMLastName
    , @RMFirstName
    , @Email

WHILE @@FETCH_STATUS = 0--(@SetInt < 6)

    BEGIN

    Truncate table Example.dbo.itemdata
    --Builds data, then inserts into Table built for this query. Note that there is no mention of DM_EMAIL, RM_EMAIL, or SM_EMail anywhere. 
    INSERT INTO Example.dbo.itemdata
        SELECT InvoiceNumber,
        shipFROMid,
        ad.SiteId,
        MfrCode,
        PartCode,
        UnitNetCore,
        ad.QuantityShipped,
        ShipDate,
        --First/Last Name of this item's store's District Manager. 
        rtrim(substring((SELECT ISNULL(DMfirstName,'') FROM example.dbo.vSiteRegionDistrictActiveV2 dm WHERE ad.siteid = dm.SiteNumber),1,30)) + ' ' +
            substring((SELECT ISNULL(DMLastName,'')  FROM example.dbo.vSiteRegionDistrictActiveV2 dm WHERE ad.siteid = dm.SiteNumber),1,30) DM
            --This is where DM_EMAIL, RM_EMAIL, and SM_EMail originally were before they were removed from both here and .ItemData.
        FROM example.dbo.vInvoiceHeaderDetail_Adis ad
            join example.dbo.Site ss on ad.SiteId=ss.siteid
            join example.dbo.vStoreDistrictRegionActive vs on ad.SiteId = vs.SiteId
        WHERE ad.siteid is not null and UnitNetCore>=250 and SUBSTRING(InvoiceNumber,2,1)='D' and QuantityShipped>0
            and isactive=1 and isowned=1 
            and ShipDate between @Begdate and @Enddate
            and vs.RMFirstName = @RMFirstName
            and vs.RMLastname = @RMLastName

            ORDER BY ad.SiteId,ShipFROMID,shipdate



    -- Execute SSIS package which downloads table to d: for email.  

            set @RecordCount=@@ROWCOUNT

            --Quick check so that if the results were blank, don't bother sending a blank email. 
            IF @RecordCount<>0
                BEGIN

                    set @Subject = 'Cores billed from PWI >= $250 ' + cast(CONVERT(date,GETDATE()) as varchar(12))
                    set @Body    = 'Run date/time- ' + cast(GETDATE() as CHAR(20))

                    EXEC  xp_cmdshell 'd:\"Program Files (x86)"\"Microsoft SQL Server"\100\DTS\Binn\DTexec.exe  /f "D:\etl\bulk\ssis\Misc\ItemInfo.dtsx"'

                    EXEC msdb.dbo.sp_send_dbmail 
                        @profile_name   ='SQL Mail',
                        @recipients     ='test', --@email
                        @subject        = @Subject,
                        @body           = @Body,
                        @body_format    = 'HTML',
                        @File_attachments = 'D:\export\temp\ItemInfo.xls',                
                        @attach_query_result_as_file =0,
                        @query_attachment_filename='\ItemInfo.xls',
                        @query_result_width = 500

                END
        --Brings CURSOR back up to next name on List, repeats process. 
        FETCH NEXT FROM RMListCursor
            INTO @RMLastName
                , @RMFirstName
                , @Email
    END
END

CLOSE RMListCursor
DEALLOCATE RMListCursor

END TRY

BEGIN CATCH

    SET @WarningLevel = 'error'
    SET @MsgDescription = 'SQL Err= [' + CAST(ERROR_MESSAGE() as varchar(200)) + ' (' + CAST(ERROR_LINE() as varchar) + ')]' 
    EXEC example.dbo.spAddSysMessage  'Store Aging', @WarningLevel , @ProcedureName , '',  'EOM Store Aging Report', @RecordCount 

END CATCH


 END

Answer 1

Recheck column assignment between source and destination and in-between component as well.

Give it a try by setting data flow component's Properties, ValidateExternalMetadata to False.

Please have a look of this as well.

Answer 2

It seems like you were changing the OLEDB Source or other type of source recently.

Thus, you must delete OLEDB Source and create a new one again. Then also delete the mapping of particular field, save, go back to mapping again and map it back. Than it should work fine.