> Fomo social proof popups: how the widget tracks visitors, which cookies such as fomo_uid it sets and why showing customer names requires care. > > Canonical: https://www.flowconsent.com/en/services/marketing/fomo Marketing # Fomo Marketing · [Official website](https://fomo.com) Fomo is a social proof marketing tool that displays popups about recent purchases, sign ups or live visitor activity on a merchant site. Its JavaScript widget loads from fomo.com, sets fomo\_uid cookies, captures impression and click events and may display personal data of past customers (first name, city) extracted from the merchant's ecommerce backend. As a marketing widget with cross site tracking and US transfers, it requires prior consent under the GDPR and ePrivacy Directive. [Block Fomo until consent](https://app.flowconsent.com/auth/sign-up?utm_source=flowconsent.com\&utm_medium=referral\&utm_campaign=marketing) · [Scan my site](https://www.flowconsent.com/en/scan) At a glance - Category [Marketing](https://www.flowconsent.com/en/services/marketing) - Consent Marketing - Prior consent Required - Documented cookies 2 - Third-party domains 4 - Servers Fomo (Justuno Inc.) infrastructure on AWS in the United States, with global Cloudflare edges. Overview ## What does Fomo do? ## **What is Fomo?** Fomo (now part of Justuno) is a social proof marketing tool launched in 2016. It displays small popups in the corner of an ecommerce site to notify visitors about recent purchases, sign ups, downloads or live activity. Fomo integrates with Shopify, WooCommerce, Magento, BigCommerce, Stripe and Zapier, and is widely used by direct to consumer brands to boost conversion. ## **Cookies and identifiers** The Fomo widget writes the fomo\_uid cookie on the merchant domain to recognise repeat visitors and to deduplicate notification displays. Impression and click events are forwarded to Fomo servers. The popup content itself often contains personal data of past customers, such as first name and city, fetched from the merchant's order data. ## **GDPR and ePrivacy implications** The fomo\_uid cookie is not strictly necessary; Article 5(3) ePrivacy requires prior consent. The display of past buyers' first name and city is processing of personal data under the GDPR and needs an Article 6 legal basis. Even when first name and city alone do not identify a single person, the combination with the product purchased, the time of purchase and the merchant context can become identifying. ## **Consent and minimisation** Block the Fomo widget through your CMP until consent is granted. Apply data minimisation: configure Fomo to display only an initial of the first name, no last name, no exact city for small areas, and to respect a customer opt out (do not display their order). Capture clear customer consent at checkout to be quoted in social proof notifications. ## **Data transfers** Fomo is operated by Justuno Inc. on AWS in the United States. The transfer of visitor and customer data must rely on the EU U.S. Data Privacy Framework or Standard Contractual Clauses signed in the Fomo DPA, with disclosure in the privacy policy. ## **Implementing Fomo compliantly** Sign the Fomo / Justuno DPA, gate the widget on a CMP signal, configure data minimisation, capture social proof consent at the order step, set retention on impression events and document the US transfer in the privacy policy and the records of processing. Compliance ## Fomo and the GDPR Fomo is classified as “Marketing”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy. - Legal basis Prior consent under Article 6(1)(a) GDPR and Article 5(3) ePrivacy: Fomo is a marketing widget that writes tracking cookies and may display personal data of past customers (first name, city) under social proof notifications. - Risk level medium - Applicable regulations GDPR, ePrivacy Directive, EU U.S. Data Privacy Framework ### Impact assessment (DPIA) A DPIA can be relevant when Fomo notifications display first name and city of recent buyers (which may identify them, especially in small towns), when integrations push detailed order data to Fomo or when behavioural retargeting is configured. ### Sample text for your banner > We use Fomo to display social proof notifications. With your consent, Fomo will set tracking cookies on your device, log displayed events and transfer the data to Fomo / Justuno Inc. in the United States. You can refuse or withdraw your consent at any time from the cookie settings. Cookies and trackers ## What Fomo sets and contacts - Tracking method JavaScript social proof widget (load.fomo.com / fomo.com) embedded on merchant sites that displays popups about recent purchases, sign ups or activity. The widget sets fomo\_uid and session cookies, fetches event templates from Fomo servers and forwards display impressions and click events back to the SaaS. - Server location Fomo (Justuno Inc.) infrastructure on AWS in the United States, with global Cloudflare edges. - Data transferred outside the EU Visitor IP addresses, page URLs and event metadata are transferred to Fomo / Justuno US infrastructure under the EU U.S. Data Privacy Framework or Standard Contractual Clauses. Personal data of past purchasers displayed in popups (first name, city) is also processed by Fomo. ### Cookies set (2) | Name | Type | Duration | Purpose | | ------------- | ------------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | | fomo\_uid | first\_party | 1 year | Visitor identifier set by the Fomo widget on the merchant domain to recognise repeat visitors and prevent showing the same notification multiple times. | | fomo\_session | first\_party | session | Session identifier used by Fomo to attribute impressions and clicks to a single visit. | ### Third-party domains contacted (4) - `load.fomo.com` - `fomo.com` - `api.fomo.com` - `cdn.fomo.com` Questions ## Frequently asked questions about Fomo Can't find your question? Write to us, we answer fast. [Write to us](https://www.flowconsent.com/en/demo) ### Which cookies does Fomo set? The Fomo widget writes the fomo\_uid cookie on the merchant domain to recognise repeat visitors and deduplicate notifications, plus a session cookie used for impression tracking. ### Does Fomo require consent? Yes. The cookie is not strictly necessary, the widget tracks visitors and the popup content can include personal data of past customers, so prior consent is required under Article 5(3) ePrivacy and Article 6(1)(a) GDPR. ### What is the legal basis? Consent for the widget cookies and the display of personal data of past customers in popups. Order processing for past customers relies on contract performance, but the social proof reuse needs an additional consent at checkout. ### Are data transferred to the United States? Yes. Fomo runs on Justuno Inc. AWS infrastructure in the United States. The transfer relies on the EU U.S. Data Privacy Framework or Standard Contractual Clauses signed in the Fomo DPA. ### Do I need a DPIA for Fomo? A DPIA can be relevant when popups display first name and city of recent buyers, especially in small towns where this can identify them. It is also recommended when integrations push detailed order data to Fomo. ### How do I deploy Fomo compliantly? Sign the Fomo DPA, gate the widget on a CMP signal, configure data minimisation (initials, no exact city), capture social proof consent at checkout, set retention on impression events and disclose the US transfer in the privacy policy. ### Are there alternatives to Fomo? Other social proof tools include ProveSource (Israel), Notify (UK) or self hosted social proof scripts that pull anonymised data from your own backend without third party processors. ### How do I update my cookie policy? Add a section that names Fomo, lists the fomo\_uid cookie with purpose and duration, mentions the display of customer data in popups and discloses the transfer to Fomo / Justuno Inc. in the United States. 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