Here’s a campaign you might not expect: In France, Netflix put up character billboards that fans could face-swap with, using the Snapchat face-swapping feature. That’s a completely fantastic way to combine social marketing with physical, real-world marketing. And the users took it multi-channel, sharing their face-swaps on Twitter
— Nicolas Garnier (@Nikoslyders) April 23, 2016
and possibly across other social channels, but without a hashtag to identify them all, it’s hard to say. The best way to measure the effectiveness of a campaign is to have a unique hashtag that’s brand-related in order to gauge the full reach of participation, even with a campaign that’s geographically limited. Otherwise, this was a great campaign maximizing physical collateral, incorporating Snapchat, and leaving room for participants to take it further.