II. Inside Voluum
The second step takes place in Voluum, where we configure all the tracking magic that will allow you to reach marketing heights.
A. Add Facebook to Voluum as a Traffic Source
This will tell Voluum where you get your traffic from and configure tracking tokens automatically.
In Voluum, click the New button and select Traffic source.
Select Facebook Ads from the list and click Next.
Click Save.

B. Integrate Facebook and Voluum
Integrating with Voluum allows for cost synchronization, passing conversions to Facebook and creating auto-rules.
Go to the Automizer tab and then to Traffic sources.
Click Add new traffic source.
Select Facebook and follow on-screen instructions.

Caution
Voluum Note: If you want to pass conversion information from Facebook to Voluum, you need to also provide your domain name that you have verified in Facebook as an Event Source URL during the integration process.
C. Add your offer to Voluum
This tells Voluum where to direct traffic.
In Voluum, click the New button and select Offer.
Put the link to the product page in the appropriate text field.
Add any additional information and click Save. Click Save.

If you plan to link directly from an ad to an offer, you need to put an offer tracking script on your offer page. You can find the script in the offer form:

E. (Optionally) Add a lander
If you plan to direct visitors to an intermediary page, called a landing page, and put a CTA button on that page that directs to an offer page, you need to add a lander to Voluum.
In Voluum, click the New button and select Lander.
Put your page link in an appropriate text field.
Get the click URL that you will put under a CTA button later.
Get the direct tracking script that you will put in your landing page's code.
Add any additional information and click Save.

F. Define a traffic flow in a Campaign
Campaign in Voluum defines how the traffic flows. You will pick a traffic source, offer, and a landing page (if used) here. Once done, you will get a direct tracking URL that will be your destination link in Google Ads.
Campaign form type: When creating a campaign for the first time, you will see a campaign form selection window. Voluum allows you to tailor its experience according to your needs: if you only need to create a simple campaign, it provides you with a simple form and hides advanced options. And that's what we are aiming for: creating a simple, yet fully functional campaign. Select the simple form by clicking the Simple campaign option.
Don't worry, every time you create a campaign you will have an option to select the type of campaign form from a small drop-down menu.
Workspace: Select the Private Workspace that this campaign will be assigned to. Workspaces allow you to separate your elements and segregate them by verticals, offer types or by other criteria. By default, you have only one Private Workspace, called Initial.
Traffic source: Select Facebook as your traffic source from the Traffic sources drop-down menu.
Campaign name: In the New campaign form provide a meaningful name of your campaign. Voluum will add some additional information to the name you provide,
Path destination: Check the Offers only option as you are not using any external landing pages, and therefore, you do not need a lander element in your campaign funnel.
Lander: Select the lander that you have just created.
Offer: Select the offer that you have just created.
Click the Save button.
The next screen provides you with a direct tracking URL, called either lander tracking URL or offer tracking URL.
Copy this URL to the clipboard by clicking the Copy button to finish the tracking setup in Voluum. Remember that the campaign URL is always available for you in a campaign's edit mode.

That's it, the tracking setup is now complete. The remaining step takes place in the traffic source platform.