Thank you for the post. Associated Domains work the same in the watchOS. There is an important note: https://developer.apple.com/documentation/xcode/supporting-associated-domains#Add-the-associated-domains-entitlement-to-your-app For a single-target watchOS apps, add the Associated Domains capability to the watchOS app target. For watchOS apps with separate WatchKit extensions, you must add the Associated Domains capability to the WatchKit Extension target. Because the Apple Watch lacks a traditional web browser and has a smaller screen, testing and diagnosing Associated Domains (like Universal Links) requires a slightly different workflow. Just like on iOS, if your apple-app-site-association (AASA) file is hosted on a local server or a dev environment not reachable by Apple's CDN. Since you cannot paste a link into a Diagnostics menu, you have to trigger the link exactly how a user would encounter it on their wrist. The most reliable way to test is to use the Messages or Mail app. Send the Universal
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App & System Services
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General
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