diff --git a/LSL2/STPROC/WORK_ORDER_SERVICES.txt b/LSL2/STPROC/WORK_ORDER_SERVICES.txt
index 4c71484..c4e9750 100644
--- a/LSL2/STPROC/WORK_ORDER_SERVICES.txt
+++ b/LSL2/STPROC/WORK_ORDER_SERVICES.txt
@@ -2066,7 +2066,7 @@ end service
 
 
 Service UpdateOpenWorkOrderData()
-    
+
 	hSysLists = Database_Services('GetTableHandle', 'SYSLISTS')
 	Lock hSysLists, ServiceKeyID then
 	    
@@ -2175,25 +2175,66 @@ Service UpdateWorkOrderData(WONo)
             For CassNo = 1 to MAX_NUM_CASS$
                 WOMatKey    = WONo:'*':CassNo
                 If RowExists('WO_MAT', WOMatKey) then
-                    Locate WOMatKey in OrigWOLogWOMatKeys using @VM setting vPos then
-                        LogData<1> = OConv(Datetime(), 'DT/^S')
-                        LogData<4> = 'WOMatKey ':WOMatKey:' found in WO_LOG record. Nothing to update.'
-                        Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                            
-                    end else
-                        LogData<1>               = OConv(Datetime(), 'DT/^S')
-                        LogData<4>               = 'WOMatKey ':WOMatKey:' not found in WO_LOG record. Adding WOMatKey to column.'
-                        Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                                
-                        NewWOLogWOMatKeys<0, -1> = WOMatKey
-                    end
+					LogData<1> = OConv(Datetime(), 'DT/^S')
+					LogData<4> = 'WOMatKey ':WOMatKey:' exists...'
+					Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                	
+                	Voided     = Xlate('WO_MAT', WOMatKey, 'VOID', 'X')
+                	If Not(Voided) then
+						LogData<1> = OConv(Datetime(), 'DT/^S')
+						LogData<4> = 'WOMatKey ':WOMatKey:' not voided. Checking if it needs to be added to column...'
+						Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                  		
+						Locate WOMatKey in OrigWOLogWOMatKeys using @VM setting vPos then
+							LogData<1> = OConv(Datetime(), 'DT/^S')
+							LogData<4> = 'WOMatKey ':WOMatKey:' found in WO_LOG record. Nothing to update.'
+							Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                            
+						end else
+							LogData<1>               = OConv(Datetime(), 'DT/^S')
+							LogData<4>               = 'WOMatKey ':WOMatKey:' not found in WO_LOG record. Adding WOMatKey to column.'
+							Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                                
+							NewWOLogWOMatKeys<0, -1> = WOMatKey
+						end
+					end else
+						LogData<1> = OConv(Datetime(), 'DT/^S')
+						LogData<4> = 'WOMatKey ':WOMatKey:' has been voided...'
+						Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)
+						Locate WOMatKey in NewWOLogWOMatKeys using @VM setting vPos then
+							LogData<1>        = OConv(Datetime(), 'DT/^S')
+							LogData<4>        = 'WOMatKey ':WOMatKey:' found in WO_LOG record. Removing from column.'
+							Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)
+							NewWOLogWOMatKeys = Delete(NewWOLogWOMatKeys, 0, vPos, 0)
+						end else
+							LogData<1> = OConv(Datetime(), 'DT/^S')
+							LogData<4> = 'WOMatKey ':WOMatKey:' not found in WO_LOG record. Nothing to update.'
+							Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                                
+						end						
+                	end
+                end else
+					LogData<1> = OConv(Datetime(), 'DT/^S')
+					LogData<4> = 'WOMatKey ':WOMatKey:' does not exist. Checking if WOMatKey ':WOMatKey:' needs to be removed from column...'
+					Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)
+					Locate WOMatKey in NewWOLogWOMatKeys using @VM setting vPos then
+						LogData<1>        = OConv(Datetime(), 'DT/^S')
+						LogData<4>        = 'WOMatKey ':WOMatKey:' found in WO_LOG record. Removing from column.'
+						Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)
+						NewWOLogWOMatKeys = Delete(NewWOLogWOMatKeys, 0, vPos, 0)
+					end else
+						LogData<1> = OConv(Datetime(), 'DT/^S')
+						LogData<4> = 'WOMatKey ':WOMatKey:' not found in WO_LOG record. Nothing to update.'
+						Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                                
+					end	                	
                 end
             Next CassNo
             If OrigWOLogWOMatKeys NE NewWOLogWOMatKeys then
-                LogData<1> = OConv(Datetime(), 'DT/^S')
-                LogData<4>        = 'WOMatKeys missing from work order. Posting transaction to update WO_MAT_KEY column.'
+                LogData<1>        = OConv(Datetime(), 'DT/^S')
+                LogData<4>        = 'WOMatKeys column out of date. Posting transaction to update WO_MAT_KEY column.'
                 Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)                             
                 NewWOLogWOMatKeys = SRP_Array('SortRows', NewWOLogWOMatKeys, 'AR2', 'LIST', @VM, '*')
                 Transaction_Services('PostWriteFieldTransaction', 'WO_LOG', WONo, WO_LOG_WO_MAT_KEY$, NewWOLogWOMatKeys)
                 If Error_Services('HasError') then ErrorMsg = Error_Services('GetMessage')
+            end else
+                LogData<1> = OConv(Datetime(), 'DT/^S')
+                LogData<4> = 'WOMatKeys column accurate. Nothing to update.'
+                Logging_Services('AppendLog', objVerifyWOMatKeysLog, LogData, @RM, @FM)             	
             end
         end else
             ErrorMsg   = 'Error in ':Service:' service. ':Error_Services('GetMessage')