Hi,
In Adobe's online documentation for Use Case: Double Opt-in:
https://docs.campaign.adobe.com/doc/AC6.1/en/WEB_Web_Forms_Use_cases.html
Under Step 1- Creating information services:
"Step 1 - Creating information services
Create the newsletter subscription service to be offered to your recipients.

...you will see that it creates a Service, "Books of the week (SVC7)," (with internal name: SVC7):

..and then it instructs to create a second service:
"2 . Create a second information service: this is a temporary service for sending confirmation messages. This is the service that users are going to be subscribing to via the form.

...with an internal name: SVC9:

...and yet in in Step 3, point 4 of "Creating the Subscription Form":
"4. We will now insert the necessary elements for giving final approval to the subscription into this same Web form. To do this, the user needs to click the link of the confirmation message.
To do this, start by: placing the following script into the diagram:

..the second line of the code links it to internal name, SVC8:

...but no SVC8 service was created only SVC7 and SVC9:
SVC7:

...and SVC9:

...SVC8 was never created in the documentation.
So where is SVC8?
And why is the second line of this code:

...linking it to SVC8??
and not to SCV7:

...nor to SVC9:

???
Where is SVC8 in the documentation and why is the code linking to SVC8, which does not exist?
Thank you,
Jae