I have tried to install my Facebook pixel by pasting it in the Online Store Preferences but it keeps saying "No recent activity" in Facebook Dashboard. The Chrome's extension Facebook Pixel Helper can't find a active pixel too. My store's website is www.stickerqos.com
It looks like your Facebook Pixel is working. Screenshot from the Chrome Extension:
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Create catalogs and which automatically syncs with event data on a daily basis which then can be used for Facebook retargeting ads (DPA).