Fetching SSIS error message into Audit table using SP

Question

Hi Experts,
I want to fetch SSIS Error Info along with Task Name into Audit table 'Error_Info' column. This is nvarchar(max) datatype, i wrote below Stored Procedure for this (Column names passing dynamically in SP)
CREATE PROC [dbo].[usp_AuditErrorHandler]
@AuditTableName nvarchar(MAX)
,@Audit_Status nvarchar(100)
,@Audit_ErrorDescription sql_variant
,@Audit_PkgEnd_dttm nvarchar(100)
,@task sql_variant
,@errordescription sql_variant 
,@Audit_ID nvarchar(10)
,@LogID INT
AS
BEGIN
DECLARE @STRQuery NVARCHAR(MAX)
SET @STRQuery = ' 
UPDATE '+@AuditTableName+'
SET '+@Audit_Status+' = ''Failed''
,'+@Audit_PkgEnd_dttm+' = GETDATE()
,'+@Audit_ErrorDescription+' = ''Task['+ @task +']:'+@errordescription +'''
WHERE ' +@Audit_ID+ ' = ' + CAST(@LogID AS NVARCHAR)
The above procedure is working fine in SSMS and inserting complete error info into table, but when i am executing thru SSIS Pkg i am getting error like
"[Execute SQL Task] Error: Executing the query "exec usp_AuditErrorHandler ?,?,?,?,?,?,?,?" failed with the following error: "Incorrect syntax near '@P1'.". Possible failure reasons: Problems with the query, "ResultSet"
property not set correctly, parameters not set correctly, or connection not established correctly."
So, i tot of checking with string lenght and modifed the code by adding left () to @errordescription as below.
UPDATE '+@AuditTableName+'
SET '+@Audit_Status+' = ''Failed''
,'+@Audit_PkgEnd_dttm+' = GETDATE()
,'+@Audit_ErrorDescription+' = ''Task['+ @task +']:'+LEFT(@errordescription ,100)+'''
WHERE ' +@Audit_ID+ ' = ' + CAST(@LogID AS NVARCHAR)
Here, it is inserting till 119 chars, if i give more than 119 chars pkg is failing with above error.
I want to get insert Complete error info into the column.
Can anybody suggest on this?? 
Thanks in advance !!!

Answer 1

Thanks Arthur for the response, i have tried with the Sql_Variant data type also, here  procedure itself not creating and throwing below error.
"The data types nvarchar(max) and sql_variant are incompatible in the add operator."
This is the procedure i am using to fetch error info into Audit table.
ALTER PROC [dbo].[usp_AuditErrorHandler]
@AuditTableName nvarchar(MAX)
,@Audit_Status nvarchar(100)
,@Audit_PkgEnd_dttm nvarchar(100)
,@Audit_Task_ErrorCode nvarchar(100)
,@Audit_ErrorDescription SQL_VARIANT
,@errorcode nvarchar(max)
,@task SQL_VARIANT
,@errordescription SQL_VARIANT 
,@Audit_ID nvarchar(10)
,@LogID INT
AS
BEGIN
SET NOCOUNT ON;
DECLARE @STRQuery SQL_VARIANT
BEGIN TRY
SET @STRQuery = '    
UPDATE  '+@AuditTableName+'
SET     '+@Audit_Status+' = ''Failed''
       ,'+@Audit_PkgEnd_dttm+' = GETDATE()
       ,'+@Audit_Task_ErrorCode+' = '''+@errorcode+'''
       ,'+@Audit_ErrorDescription+' = ''Task['+ @task +']:'+ @errordescription +'''
(Error is giving in this line)
WHERE   ' +@Audit_ID+ ' = ' + CAST(@LogID AS NVARCHAR)
EXEC (@STRQuery)
END TRY 
Below is the Audit Table Schema