Error converting data type varchar to numeric in SQL - sql

Question

I have spent the last 3 hours trying to figure this out but I have had not luck. When executing this SP I get the below error:
Msg 8114, Level 16, State 5, Procedure sp_SPLIT_CARTON, Line 28
Error converting data type varchar to numeric.
Here is the SP and help is really appreciated
USE [1_WMS]
GO
ALTER PROCEDURE [dbo].sp_SPLIT_CARTON
#FROM_CARTON VARCHAR(20)
, #TO_CARTON VARCHAR(20)
, #SKU VARCHAR(20)
, #QTY DECIMAL
, #USER VARCHAR(20)
AS
DECLARE
#DATE VARCHAR(10)
, #TIME VARCHAR(8)
, #SYS_CONFIG_CODE VARCHAR(5)
, #SYS_CONFIG_VALUE INT
, #CN_STATUS INT
, #CN_STATUS_1 INT --USE FOR BETWEEN STATEMENT
, #CN_STATUS_2 INT --USE FOR BETWEEN STATEMENT
, #CN_STORE VARCHAR(10)
SET #DATE = CONVERT(VARCHAR(10), GETDATE(),101);
SET #TIME = CONVERT(VARCHAR(8), GETDATE(),114);
SET #SYS_CONFIG_CODE = 'SPLCN';
SET #CN_STATUS_1 = '10';
--SET #CN_STATUS_2 = 20;
--THIS IS LINE 28
/*CHECK FOR VALID CARTON STATUS BEFORE SPLITTING*/
SELECT #CN_STATUS = cn_status
, #CN_STORE = cn_store
FROM CARTON
WHERE cn_number = #FROM_CARTON --I BELIEVE THIS IS THE PIECE OF CODE CAUSING THE ISSUE
IF #CN_STATUS = #CN_STATUS_1
BEGIN
/*CHECK FOR SYSTEM CONFIGURATION*/
SELECT #SYS_CONFIG_VALUE = sys_value FROM SYS_CONFIG
WHERE sys_code = #SYS_CONFIG_CODE
IF #SYS_CONFIG_VALUE = 1
BEGIN
/*REMOVE SKU FROM CURRENT CARTON*/
DELETE FROM CARTON_DETAIL
WHERE cd_carton_number = #FROM_CARTON
AND cd_barcode = #SKU
/*UPDATE THE CARTON HEADER*/
UPDATE CARTON
SET cn_packed_qty = cn_packed_qty - #QTY
, cn_modify_date = #DATE
, cn_modify_time = #TIME
, cn_modify_by = #USER
WHERE cn_number = #FROM_CARTON
AND cn_status BETWEEN #CN_STATUS_1 AND #CN_STATUS_2
/*CREATE NEW CARTON HEADER*/
INSERT INTO CARTON
(
cn_number
)
VALUES
(
#FROM_CARTON
)
/*CREATE CARTON DETAIL*/
INSERT INTO CARTON_DETAIL
(
cd_carton_number
)
VALUES
(
#TO_CARTON
)
END
ELSE IF #SYS_CONFIG_VALUE = 0
BEGIN
/*REMOVE SKU FROM CURRENT CARTON*/
DELETE FROM CARTON_DETAIL
WHERE cd_carton_number = #FROM_CARTON
AND cd_barcode = #SKU
/*UPDATE THE CARTON HEADER*/
UPDATE CARTON
SET cn_packed_qty = cn_packed_qty - #QTY
, cn_modify_date = #DATE
, cn_modify_time = #TIME
, cn_modify_by = #USER
WHERE cn_number = #FROM_CARTON
AND cn_status BETWEEN #CN_STATUS_1 AND #CN_STATUS_2
/*GET THE NEXT CARTON FROM COUNTERS*/
SELECT #TO_CARTON = counter_current FROM COUNTERS WHERE counter_name = (
SELECT DISTINCT so_counter_name FROM STORES WHERE SO_NUMBER = (
SELECT DISTINCT cn_store FROM CARTON WHERE cn_number = #FROM_CARTON))
/*UPDATE THE COUNTER AFTER GETTING THE NEXT CARTON NUMBER*/
UPDATE COUNTERS SET counter_current = counter_current + 1
, counter_next = counter_next + 1
WHERE counter_name = (SELECT DISTINCT so_counter_name FROM STORES WHERE SO_NUMBER = (
SELECT DISTINCT cn_store FROM CARTON WHERE cn_number = #FROM_CARTON))
/*CREATE NEW CARTON HEADER*/
DECLARE
#CN_NUMBER VARCHAR(20) , #CN_PICKTICKET VARCHAR(20) , #2ndCN_STORE VARCHAR(10) , #CN_LOAD_NUMBER VARCHAR(20)
, #CN_SHIPMENT_NUMBER VARCHAR(20) , #CN_MANIFEST_NUMBER VARCHAR(20) , #CN_PACKED_QTY DECIMAL , #CN_TRACKING_NUMBER VARCHAR(20)
, #CN_TYPE VARCHAR(5) , #CN_PACK_TYPE VARCHAR(5) , #CN_ROUTE VARCHAR(5) , #CN_SHIP_VIA VARCHAR(5)
, #CN_BOL VARCHAR(20) , #CN_MBOL VARCHAR(20) , #CN_PARCEL_NUMBER VARCHAR(10) , #CN_TRAILER_NUMBER VARCHAR(10)
, #CN_AREA VARCHAR(10) , #CN_ZONE VARCHAR(10) , #CN_AISLE VARCHAR(10) , #CN_LEVEL VARCHAR(10)
, #CN_POSITION VARCHAR(10) , #CN_HEIGHT DECIMAL , #CN_WIDTH DECIMAL , #CN_DIMENSION DECIMAL
, #CN_WEIGHT DECIMAL , #CN_VOLUME DECIMAL , #2ndCN_STATUS INT , #CN_ADDRESS VARCHAR(150)
, #CN_ADDRESS_1 VARCHAR(150) , #CN_CITY VARCHAR(50) , #CN_STATE VARCHAR(50) , #CN_ZIP_CODE VARCHAR(20)
, #CN_COUNTRY VARCHAR(50) , #CN_MISC7 VARCHAR(50) , #CN_MISC8 VARCHAR(50) , #CN_MISC9 VARCHAR(50)
, #CN_MISC10 VARCHAR(50)
SET #CN_NUMBER = #TO_CARTON SET #2ndCN_STORE = #CN_STORE SET #CN_LOAD_NUMBER = ''
SET #CN_SHIPMENT_NUMBER = '' SET #CN_MANIFEST_NUMBER = '' SET #CN_PACKED_QTY = ''
SET #CN_TRACKING_NUMBER = '' SET #CN_TYPE = 'SPLIT' SET #CN_PACK_TYPE = 'SPLITTED'
SET #CN_ROUTE = '' SET #CN_SHIP_VIA = '' SET #CN_BOL = ''
SET #CN_MBOL = '' SET #CN_PARCEL_NUMBER = '' SET #CN_TRAILER_NUMBER = ''
SET #CN_AREA = '' SET #CN_ZONE = '' SET #CN_AISLE = ''
SET #CN_LEVEL = '' SET #CN_POSITION = '' SET #CN_HEIGHT = ''
SET #CN_WIDTH = '' SET #CN_DIMENSION = '' SET #CN_WEIGHT = ''
SET #CN_VOLUME = '' SET #2ndCN_STATUS = '10' SET #CN_MISC7 = ''
SET #CN_MISC8 = '' SET #CN_MISC9 = '' SET #CN_MISC10 = ''
/*GET STORE INFORMATION*/
SELECT #CN_ADDRESS = so_address
, #CN_ADDRESS_1 = so_address_1
, #CN_CITY = so_city
, #CN_STATE = so_state
, #CN_ZIP_CODE = so_zip_code
, #CN_COUNTRY = so_country
FROM STORES
WHERE so_number = #CN_STORE
EXECUTE sp_CREATE_CARTON
#CN_NUMBER , #CN_PICKTICKET , #CN_STORE , #CN_LOAD_NUMBER , #CN_SHIPMENT_NUMBER
, #CN_MANIFEST_NUMBER , #CN_PACKED_QTY , #CN_TRACKING_NUMBER , #CN_TYPE , #CN_PACK_TYPE
, #CN_ROUTE , #CN_SHIP_VIA , #CN_BOL , #CN_MBOL , #CN_PARCEL_NUMBER
, #CN_TRAILER_NUMBER , #CN_AREA , #CN_ZONE , #CN_AISLE , #CN_LEVEL
, #CN_POSITION , #CN_HEIGHT , #CN_WIDTH , #CN_DIMENSION , #CN_WEIGHT
, #CN_VOLUME , #CN_STATUS , #CN_ADDRESS , #CN_ADDRESS_1 , #CN_CITY
, #CN_STATE , #CN_ZIP_CODE , #CN_COUNTRY , #CN_MISC7 , #CN_MISC8
, #CN_MISC9 , #CN_MISC10 , #USER
INSERT INTO CARTON
(
cn_number
)
VALUES
(
#TO_CARTON
)
/*CREATE CARTON DETAIL*/
INSERT INTO CARTON_DETAIL
(
cd_carton_number
)
VALUES
(
#TO_CARTON
)
END
END
--ELSE
-- BEGIN
-- EXECUTE sp_CREATE_ERROR_MESSAGE
-- #ER_TYPE
-- END
GO

Answer 1

--Find the row that is not numeric and fix data
SELECT *
FROM CARTON
WHERE ISNUMERIC(cn_number) != 1 OR
ISNUMERIC(cn_status) != 1
--If you can't fix the data you will need to cast as varchar and compare