خطأ في جملة Sql

الاخوة الزملاء

السلام عليكم ورحمة الله وبركاتة

عندي مشكلة في اجراء مخزن يعطني خطأ ولا استطيع تحديد سبب المشكلة فبرجاء مساعدتي في هذا الامر

set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO
ALTER Proc [dbo].[RptSupplierAccountDetails]  

@Supid int


as begin SELECT     dbo.Suppliers.Supid, dbo.Suppliers.Supplier, '0' AS securities  
 ,HAdd_Doc, Trans.Depit  , 0 AS credit
, dbo.Suppliers.Home, dbo.Suppliers.Mobile, dbo.Suppliers.Job, dbo.Suppliers.address
,Trans.ZDate
FROM dbo.Suppliers INNER JOIN ( select dbo.AddDoc.Supid ,ZDate,AddDoc.HAdd_Doc ,Sum (Convert(float, dbo.Transactions.GrandTotal))  AS Depit
								from dbo.Transactions INNER JOIN AddDoc ON AddDoc.HAdd_Doc = dbo.Transactions.DAdd_Doc
					 Group By  AddDoc.Supid,ZDate , dbo.AddDoc.HAdd_Doc
					) as Trans ON Suppliers.Supid =  Trans.Supid			 

where (dbo.Suppliers.Supid = @Supid)

Union all
 Select
dbo.Suppliers.Supid,dbo.Suppliers.Supplier, dbo.AccountPayable.securities, '-' AS HAddDoc, 0 AS depit, Sum(Convert(float, AccountPayable.LE)) AS Credit,
dbo.Suppliers.Home, dbo.Suppliers.Mobile, dbo.Suppliers.Job, dbo.Suppliers.address, dbo.AddDoc.ZDate

FROM  Suppliers
--INNER JOIN AddDoc ON dbo.Suppliers.Supplier = AddDoc.Supplier  
INNER JOIN AccountPayable ON Suppliers.Supplier = AccountPayable.Supplier

where (dbo.Suppliers.Supid = @Supid)
 Group by dbo.Suppliers.Supid,dbo.Suppliers.Supplier, dbo.AccountPayable.securities,dbo.Suppliers.Home, dbo.Suppliers.Mobile, dbo.Suppliers.Job, dbo.Suppliers.address, dbo.AddDoc.ZDate
end

exec [RptSupplierAccountDetails] 1

وهذا الخطا الذي يظهر لي

Msg 4104, Level 16, State 1, Procedure RptSupplierAccountDetails, Line 9

The multi-part identifier "dbo.AddDoc.ZDat" could not be bound.

Msg 4104, Level 16, State 1, Procedure RptSupplierAccountDetails, Line 9

The multi-part identifier "dbo.AddDoc.ZDate" could not be bound.

وشكرا علي المساعدة