As have been reported earlier, Facebook has for some time been planning on removing certain attribution windows for Facebook Ads. These changes have now taken place.
This means that since the 27th of April 2021, it's not possible to connect new Facebook Ads data sources with the following attribution windows in Funnel:
- 28-day click-through
- 28-day view-through
- 7-day view-through
For more information on this topic, see our help article.