This article will guide you through the process of appending your own dynamic variables to impact.com tracking links. This is particularly useful for certain partners—like Cashback and Loyalty websites—to ensure members are correctly attributed for clicks and actions.
Warning
You'll need to ensure your system is configured to accept dynamic variables and populate them correctly before the conversion data is sent to impact.com. Work with your technical team (or refer to your website provider's documentation) for more information about how your website handles these types of variables.
From the top navigation menu, select Content → Assets.
Find the asset to which you want to add dynamic Sub ID values, select it.
In the pop-up modal to the right, select Get Ad code.
Slide the
[Toggle] on to reveal the Tracking Parameters.
In the Sub ID fields, add your dynamic values. You can add up to 3 values, 1 in each field.
Once you've filled out the sections, select Save.
Note
To remove or edit any Tracking Parameters, simply clear or edit the text in the Sub ID Parameters fields, then select save

Warning
The exact structure of the variable—in the case above, the {{MemberID}}
examples—can be different. This will depend on your website's internal database and the programming syntax your website supports. Work with your technical team (or refer to your website provider's documentation) for more information about how your website handles these types of variables.
You might be interested in the popular dynamic value MemberID
. This value is commonly used to track which member in your site clicked on a link you're hosting and purchased something. To track this dynamic value, add the following code to one of your Sub ID fields:
{{MemberID}}
This will generate a tracking code similar to:
https://wile-e-coyote.sjv.io/c/7000000/7777777/00500?subId1=%257B%257BMemberID%257D%257D

When a member of your website clicks on this link, your website will dynamically populate the Sub ID field with the member's actual ID (e.g., "12345678"), and the dynamically populated value will be reflected in impact.com reporting.