elsif($oid =~ /\*$/) {
  Vend::Tags->error( {
          name => 'settle_transaction',
          set => "Order ID $oid already settled!",
        });
  return undef;
}
else {
#::logDebug("auth-code: $trec->{auth_code} oid=$oid");
  my $settled  = Vend::Tags->charge( {
            route => $::Variable->{MV_PAYMENT_MODE},
            order_id => $oid,
            amount => $amount,
            auth_code => $trec->{auth_code},
            transaction => 'settle_prior',

elsif($oid =~ /-$/) {
  Vend::Tags->error( {
          name => 'void_transaction',
          set => "Order ID $oid already voided!",
        });
  return undef;
}
else {
#::logDebug("auth-code: $trec->{auth_code} oid=$oid");
  my $voided  = Vend::Tags->charge( {
            route => $::Variable->{MV_PAYMENT_MODE},
            order_id => $oid,
            amount => $amount,
            auth_code => $trec->{auth_code},
            transaction => 'void',

In etc/log_transction, immediately after the
[elsif variable MV_PAYMENT_MODE]
[calc]
insert this line:
undef $Session->{payment_result}{MStatus};

and leave
[elsif variable MV_PAYMENT_MODE]
as set (contrary to earlier revisions of this document), but within the \
 same section change the following 
two instances of
[var MV_PAYMENT_MODE] to [value mv_payment_route]

Also add these five lines to the end of the section that starts "[import table=transactions ":
lead_source: [data session source]
referring_url: [data session referer]

8. When running a card through 3DSecure, the route is run twice: firstly \
 to Sagepay who check whether or
not the card is part of 3DSecure - if it is they send the customer to the bank's authentication page
and upon returning from that the route must be run a second time to send \
 the authentication results to
Sagepay. The second run is initiated from the 'ord/tdsreturn' page, not \
 from etc/log_transaction as it normally
would be. To handle this change to the normal system flow you need to alter \
 log_transaction to make the 
call to the payment module conditional,ie, wrap the following code around \
 the "[charge route...]" call 
found in ln 172 (or nearby):
[if scratchd mstatus eq success]
[tmp name="charge_succeed"][scratch order_id][/tmp]
[else]
[tmp name="charge_succeed"][charge route="[var MV_PAYMENT_MODE]" amount="[scratch \
 tmp_remaining]" order_id="[value mv_transaction_id]"][/tmp]
[/else]
[/if]
If the first call to Sagepay returns a request to send the customer to \
 the 3DSecure server, then IC will 
write a payment route error to the error log prior to sending the customer \
 there. This error stops the

[elsif variable MV_PAYMENT_MODE]
to
[elsif value mv_order_profile =~ /worldpay/] add an OR if required
eg [elsif value mv_order_profile =~ /googlecheckout|worldpay/]

Then in the [calc] block immediately below insert this line: 

undef $Session->{payment_result}{MStatus};

Within the same section change the following two instances of
[var MV_PAYMENT_MODE] to [value mv_payment_route]

10. Creat a callback page in /pages called wpcallback.html or any name you prefer, set this page in
the Worldpay admin panel, the module also supports dynamic callback pages \
 where different catalogs can
have different callback pages, if using this the callpage URL must be set \
 in the route in catalog.cfg as

or

Route PRI id YourPRIID

or with only PRI as a payment provider

Variable MV_PAYMENT_ID      YourPRIID

A fully valid catalog.cfg entry to work with the standard demo would be:

Variable MV_PAYMENT_MODE    ""
Route  PRI      id          ""
Route  PRI      regkey      ""
Route  PRI      test_id     ""
Route  PRI      test_regkey ""

In etc/log_transction, immediately after the 
[elsif variable MV_PAYMENT_MODE]
[calc]
insert this line: 
undef $Session->{payment_result}{MStatus};

and leave
[elsif variable MV_PAYMENT_MODE] 
as set (contrary to previous revisions of this document) but within the \
 same section change the following 
two instances of [var MV_PAYMENT_MODE] to [value mv_payment_route]. In \
 particular, the setting inside the
[charge route="..] line will specify which payment processor is used for \
 each particular case, and you
need to further modify this line so that it ends up like this:
[tmp name="charge_succeed"][charge route="[value mv_payment_route]" pprequest="dorequest" \
 amount="[scratch tmp_remaining]" order_id="[value mv_transaction_id]"][/tmp]
If the value of 'mv_payment_route' is set to 'paypalexpress', then this \
 is the one that is run. It is only