SQL Syntax error (only when run as scheduled job) - sql-server

Question

I have just created a scheduled job to run daily, but when the job runs via the scheduler I get the error "Incorrect syntax near 'Item'. [SQLSTATE 42000] (Error 102)".
This only happens when the job is run via the scheduler, and works fine when run directly.
DELETE FROM [NAVQueriesDB].[dbo].[New Items on Order] GO
SET ANSI_WARNINGS OFF
GO
INSERT [NAVQueriesDB].[dbo].[New Items on Order] (
[Updated Date],
[Location Code],
[Order No_],
[Item No_],
[Item Description],
[Variant Code],
[Description 2],
[Outstanding Qty_],
[Order Date],
[Vendor_No],
[Vendor_Name])
SELECT
GETDATE() AS "Updated Date",
[Purch Line].[Location Code],
[Purch Line].[Document No_],
[Item].[No_],
[Item].[Description],
ISNULL([Purch Line].[Variant Code],'-') AS "Variant Code",
ISNULL([Variant].[Description 2],'-') AS "Description 2",
CAST(SUM([Purch Line].[Outstanding Quantity]) as decimal(18,0)) AS "Outstanding Qty.",
[Purch Line].[Order Date],
[Purch Line].[Buy-from Vendor No_],
[Vendor].[Name]
FROM [Wings$Item] AS "Item"
LEFT JOIN [Wings$Purchase Line] AS "Purch Line"
ON [Item].[No_] = [Purch Line].[No_]
LEFT JOIN [Wings$Item Variant] AS "Variant"
ON [Item].[No_] = [Variant].[Item No_] AND [Purch Line].[Variant Code] = [Variant].[Code]
LEFT JOIN [Wings$Vendor] AS "Vendor"
ON [Purch Line].[Buy-from Vendor No_] = [Vendor].[No_]
LEFT JOIN [Wings$Item Ledger Entry] AS "Item Ledger"
ON [Item].[No_] = [Item Ledger].[Item No_]
WHERE
[Item].[No_] > '5618%'
AND [Item].[No_] <> 'Z999999'
AND [Item Ledger].[Item No_] IS NULL
GROUP BY
[Purch Line].[Location Code],
[Purch Line].[Document No_],
[Item].[No_],
[Item].[Description],
[Purch Line].[Variant Code],
[Variant].[Description 2],
[Purch Line].[Outstanding Quantity],
[Purch Line].[Order Date],
[Purch Line].[Buy-from Vendor No_],
[Vendor].[Name]
ORDER BY
[Location Code],
[Item].[No_],
[Item].[Description],
[Purch Line].[Variant Code]

Answer 1

It's a bad idea (IMO) to use double quotes for your identifiers. The standard is [] if it has to be quoted (which is also why I avoid spaces in my names so that I don't have to quote them).
SQL Agent defaults to QUOTED_IDENTIFIER being set to OFF. If you change the double quotes to brackets then this should work. Alternatively (but not recommended), you could include the first line of your script to be SET QUOTED_IDENTIFIER ON.
For example, GETDATE() AS "Updated Date"... GETDATE() AS [Updated Date] is better. GETDATE() AS updated_date is best.