Instructions for proceed code implementation

This will prevent customers from checking out if they don't supply a valid email address.  
This only works if your store requires customer account creation.  If they can checkout
without an account in your store, do not try to implement this feature.

1) Create a custom customer field with the code "proceed" and the name "Proceed Code".

2) Create a page template with the code of "PROCEED".  Make the name whatever you 
want, e.g. "Proceed Code Email".  Put the following in the body of the template and
click update.

<mvt:if expr="g.Screen CIN 'PROCEED'">
<mvt:exit>
</mvt:if>
%subject|Here is your code to proceed in checkout%
%from|g.store:email%
%to|g.customer:bill_email%
&mvte:global:customer:bill_fname; &mvte:global:customer:bill_lname;,
%lf%
%lf%
Here is the code you will need to proceed &mvte:global:proceedcode;
%lf%
%lf%


3) On the page after the customer saves their customer info, place the following
code inside the existing form on that page.

Check your email for the code to proceed<br>
<input type="text" name="proceed" value="" size="12">

After the form on that page, insert the following code

<mvt:item name="toolkit" param="randomstring|proceedcode|8" />
<mvt:item name="toolkit" param="smtp|PROCEED" />
<mvt:item name="toolkit" param="custinsert|proceed|g.proceedcode" />

This will generate an eight character random string and send it to the customer's
email.  It also inserts the random string into the custom customer field called 
proceed.

4) On the next screen insert the following before the form on the page.

<mvt:item name="toolkit" param="customer|gocode|proceed" />
<mvt:if expr="NOT g.proceed OR (g.gocode NE g.proceed)">
Your proceed code does not match.
<mvt:exit>
</mvt:if>

This checks the custom customer field called proceed and saves 
the value to a variable called gocode.  The next line checks to
make sure the customer had entered a code in the proceed input and
that that code matches the gocode.  If it does not, the page 
abruptly terminates with the <mvt:exit> command.  You may want to 
add some page formatting after the message and before the exit, e.g.
terminate the page with </body></html>.  

Then locate the form on this page and insert the following.

<input type="hidden" name="proceed" value="&mvte:global:proceed;">

This line will save the proceed variable in case the page is redisplayed
do to a missing data element.