# SKAdNetwork (SKAN) FAQ

Source: https://tenjin.com/docs/skadnetwork-faq/

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##### Does Tenjin offer a Single Source of Truth (SSOT) product for iOS?


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##### I was told by Attribution partner A that they are a certified SKAdNetwork. Are you a certified SKAdNetwork?


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##### What do I, as an app developer, need to do to run iOS 14 compatible campaigns?


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##### Can the ATT consent popup be preceded by the custom popup by the app developer (to encourage the user to accept the consent)?


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##### Do I need to do anything on the monetization side for SKAdNetwork to work?


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##### Why are there some SKAdNetwork postbacks with Conversion value NULL?


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##### How does the count of Conversion value that I see in Tenjin SK AdNetwork tab relate to reported and/or tracked installs from Tenjin User Acquisition tab?


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##### So what are the common causes of discrepancy between tracked installs and SKAdNetwork installs?


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##### Can I show the ATT Popup at a later time in the app?


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##### What are Apple SKAN metrics?


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##### Why should Advertisers use Apple SKAN metrics?


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##### What is this error I see when testing SKAN and how to resolve it?