Incorrect SQL syntax pointing at empty bottom row - sql-server

Question

I have a set of data that I upload to SQL and since a couple of new columns have been added (abandoned IVR & answered IVR) it is failing to upload properly.
The data will now only land in the temp table and not the full data one, but what makes it all the more confusing is that it's saying their is a syntax error of ',' on the bottom line which is blank
This is my merge statement which is when I debug is saying where the potential error is. But I don't understand why the error is pointing at a blank row and stopping the upload from happening?
Could anyone give me any pointers, apologies for the code layout - I don't know how to set it out.
Thanks
Dan
sSQL = "MERGE [C3 ODS].Telephony AS Target USING (SELECT CallDate,VDN,VDN_Name,Skill,Skill_Name,Telephony_Lookup,Site,Team,SubTeam,Client, '" & _
" Scheme,Calls_Offered,Calls_Answered,Calls_Abandoned,Calls_Abandoned_SLA,Calls_Answered_SLA,Average_TalkTime,Average_ACW,Average_HandleTime, '" & _
" Average_AbandonTime,Average_SpeedAnswer,TelephonySystem,TimePeriod1,TimePeriod2,TimePeriod3,TimePeriod4,TimePeriod5,TimePeriod6,TimePeriod7, '" & _
" TimePeriod8,TimePeriod9,Abandon1,Abandon2,Abandon3,Abandon4,Abandon5,Abandon6,Abandon7,Abandon8,Abandon9,Abandon10,Answered1,Answered2, '" & _
" Answered3,Answered4,Answered5,Answered6,Answered7,Answered8,Answered9,Answered10,DataLoad_Date,ClientGroup,LOB,ServiceLevel,Section, '" & _
" ForecastGroup,AbandonedIVR,AnsweredIVR FROM [C3 ODS].Telephony_Temp) AS Temp " & _
" ON Target.CallDate = Temp.CallDate AND Target.Telephony_Lookup = Temp.Telephony_Lookup WHEN MATCHED THEN UPDATE SET Target.Calls_Offered = Temp.Calls_Offered, '" & _
" Target.Calls_Answered = Temp.Calls_Answered, Target.Calls_Abandoned = Temp.Calls_Abandoned, Target.Calls_Abandoned_SLA = Temp.Calls_Abandoned_SLA, '" & _
" Target.Calls_Answered_SLA = Temp.Calls_Answered_SLA, Target.Average_TalkTime = Temp.Average_TalkTime, Target.Average_ACW = Temp.Average_ACW, '" & _
" Target.Average_HandleTime = Temp.Average_HandleTime, Target.Average_AbandonTime = Temp.Average_AbandonTime, Target.Average_SpeedAnswer = Temp.Average_SpeedAnswer, '" & _
" Target.VDN_Name = Temp.VDN_Name, Target.Skill_Name = Temp.Skill_Name, Target.Site = Temp.Site, Target.Team = Temp.Team, Target.SubTeam = Temp.SubTeam, '" & _
" Target.ClientGroup = Temp.ClientGroup, Target.Client = Temp.Client, Target.Scheme = Temp.Scheme " & _
" WHEN NOT MATCHED THEN INSERT (CallDate,VDN,VDN_Name,Skill,Skill_Name,Telephony_Lookup,Site,Team,SubTeam,Client,Scheme,Calls_Offered,Calls_Answered, '" & _
" Calls_Abandoned,Calls_Abandoned_SLA,Calls_Answered_SLA,Average_TalkTime,Average_ACW,Average_HandleTime,Average_AbandonTime,Average_SpeedAnswer, '" & _
" TelephonySystem,TimePeriod1,TimePeriod2,TimePeriod3,TimePeriod4,TimePeriod5,TimePeriod6,TimePeriod7,TimePeriod8,TimePeriod9,Abandon1,Abandon2, '" & _
" Abandon3,Abandon4,Abandon5,Abandon6,Abandon7,Abandon8,Abandon9,Abandon10,Answered1,Answered2,Answered3,Answered4,Answered5,Answered6,Answered7, '" & _
" Answered8,Answered9,Answered10,DataLoad_Date,ClientGroup,LOB,ServiceLevel,Section,ForecastGroup,AbandonedIVR,AnsweredIVR) " & _
" VALUES (Temp.CallDate, Temp.VDN, Temp.VDN_Name, Temp.Skill, Temp.Skill_Name, Temp.Telephony_Lookup, Temp.Site, Temp.Team, Temp.SubTeam, '" & _
" Temp.Client, Temp.Scheme, Temp.Calls_Offered, Temp.Calls_Answered, Temp.Calls_Abandoned, Temp.Calls_Abandoned_SLA, Temp.Calls_Answered_SLA, '" & _
" Temp.Average_TalkTime, Temp.Average_ACW, Temp.Average_HandleTime, Temp.Average_AbandonTime, Temp.Average_SpeedAnswer, Temp.TelephonySystem, '" & _
" Temp.TimePeriod1, Temp.TimePeriod2, Temp.TimePeriod3, Temp.TimePeriod4, Temp.TimePeriod5, Temp.TimePeriod6, Temp.TimePeriod7, Temp.TimePeriod8, '" & _
" Temp.TimePeriod9, Temp.Abandon1, Temp.Abandon2, Temp.Abandon3, Temp.Abandon4, Temp.Abandon5, Temp.Abandon6, Temp.Abandon7, Temp.Abandon8, '" & _
" Temp.Abandon9, Temp.Abandon10, Temp.Answered1, Temp.Answered2, Temp.Answered3, Temp.Answered4, Temp.Answered5, Temp.Answered6, Temp.Answered7, '" & _
" Temp.Answered8, Temp.Answered9, Temp.Answered10, Temp.DataLoad_Date, Temp.ClientGroup, Temp.LOB, Temp.ServiceLevel, Temp.Section, '" & _
" Temp.ForecastGroup, Temp.AbandonedIVR, Temp.AnsweredIVR);"
Cn.Execute sSQL