Meta recently introduced Site Links, allowing scrollable links below ad creatives on Facebook feed placements. However, tracking clicks on these links is challenging.
Initially, using the breakdown by Dynamic Creative Element and selecting Website URL seemed a solution to capture all clicked URLs. Unfortunately, this breakdown is currently non-functional.
URL Parameters
A more practical approach is adding URL parameters to Site Links, which can also provide additional data in GA4. By creating custom conversions based on URLs with these parameters, you can isolate clicks from Site Links. Adding columns in Ads Manager can help track these clicks.
Despite these methods, results may be minimal without a high budget, as Site Links are not a dominant feature and are limited to specific placements. However, adding tracking ensures you capture any interaction when it occurs.