{"id":136007,"date":"2025-03-15T22:27:49","date_gmt":"2025-03-15T22:27:49","guid":{"rendered":"https:\/\/peraltafinancing.com\/analytics\/gtmtips-track-launch-campaigns-in-gtm-for-ios\/"},"modified":"2025-03-15T22:27:49","modified_gmt":"2025-03-15T22:27:49","slug":"gtmtips-track-launch-campaigns-in-gtm-for-ios","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=136007","title":{"rendered":"#GTMTips: Track Launch Campaigns In GTM For iOS"},"content":{"rendered":"


\n<\/p>\n

\n

In Google Analytics<\/a> for iOS, there are two types of campaign measurement. There\u2019s install campaign measurement<\/a>, which lets you track the channels which brought your visitors to the App Store, where they proceeded to download your app. There\u2019s also launch campaign tracking<\/a>, which lets you attribute app launches to specific campaigns.<\/p>\n

In this tip post, we\u2019ll tackle the latter. We\u2019ll leverage a feature of the Google Analytics iOS SDK<\/a> to build the parameters, and then push them to dataLayer<\/code> so that they can be used in the Tag.<\/p>\n

We\u2019ll be using Swift as the language of choice. Check out my previous two posts<\/a> on GTM for iOS if you need more information on how to make GTM work in your iOS \/ Swift app.<\/p>\n


\n X<\/span><\/p>\n

\n
\n The Simmer Newsletter<\/strong>\n <\/p>\n

\n Subscribe to the Simmer newsletter<\/a> to get the latest news and content from Simo Ahava into your email inbox!\n <\/p>\n

<\/span><\/p>\n

Tip 39: Launch campaign tracking in Google Tag Manager for iOS<\/h2>\n
\n

<\/p>\n

\"Track<\/p>\n

<\/a><\/p>\n<\/div>\n

To make it all work, you need two<\/strong> things.<\/p>\n

    \n
  1. \n

    Code which parses the parameters from the URL and pushes them to dataLayer<\/code>.<\/p>\n<\/li>\n

  2. \n

    Data Layer Variables to send the campaign parameters through your Tag.<\/p>\n<\/li>\n<\/ol>\n

    1. Modifying the app code<\/h3>\n

    To parse the URL, we\u2019ll leverage the setCampaignParametersFromUrl<\/code> method in the GAIDictionaryBuilder<\/code> class of the Google Analytics SDK. We won\u2019t use it for anything else except for parsing the URL. So, in your AppDelegate.swift<\/strong> file, locate the overloaded constructor with the handleOpenURL<\/code> method, or create it yourself:<\/p>\n

    \n
    func<\/span> application<\/span>(application: UIApplication, handleOpenURL url: NSURL) -> Bool<\/span> {\n  ...\n}<\/code><\/pre>\n<\/div>\n
    This is where the app parses any URL parameters used in the launch.<\/p>\n
    So, now we need to leverage the GA SDK\u2019s built-in methods, and we need to push the parameters to dataLayer<\/code>. The setup might look something like this:<\/p>\n
    \n
    func<\/span> application<\/span>(application: UIApplication, handleOpenURL url: NSURL) -> Bool<\/span> {\n  let<\/span> urlString<\/span> = url.absoluteString\n  let<\/span> hitParams<\/span> = GAIDictionaryBuilder.init<\/span>()\n  let<\/span> dataLayer<\/span> = TAGManager.instance().dataLayer\n  hitParams.setCampaignParametersFromUrl(urlString)\n  dataLayer.push([\n    \"campaignMedium\"<\/span> : hitParams.get<\/span>(kGAICampaignMedium) ?? \"\"<\/span>,\n    \"campaignName\"<\/span> : hitParams.get<\/span>(kGAICampaignName) ?? \"\"<\/span>,\n    \"campaignSource\"<\/span> : hitParams.get<\/span>(kGAICampaignSource) ?? \"\"<\/span>\n  ])\n  return<\/span> true<\/span>\n}<\/code><\/pre>\n<\/div>\n
    Let\u2019s just quickly walk through this. urlString<\/code> is the variable where we\u2019ll store the URL string itself (d\u2019oh). hitParams<\/code> is what we\u2019ll use to parse the URL, and dataLayer<\/code> is where we\u2019ll push the information.<\/p>\n
    So, if your app is launched with something like:<\/p>\n
    awesomeApp:\/\/?utm_source=newsletter&utm;_medium=email&utm;_campaign=December_2015<\/strong><\/p>\n
    The values for source (newsletter), medium (email), and campaign (December_2015) would be stored in the constants kGAICampaignSource<\/strong>, kGAICampaignMedium<\/strong>, kGAICampaignName<\/strong>, respectively.<\/p>\n
    The dataLayer.push()<\/code> pulls these from hitParams<\/code> and stores them in the data structure. If a parameter is missing from the URL, then a blank string is stored for that particular parameter.<\/p>\n
    Now we have the values in dataLayer<\/code>. Next, we need our container to pick them up and send them with our Tag(s).<\/p>\n
    2. Modifying the container<\/h3>\n
    To make it all work, you now need to create three Data Layer Variables (one for each parameter), and add them to your Tag.<\/p>\n
    DLV – campaignSource<\/strong>
    Variable name:<\/em> campaignSource<\/p>\n
    DLV – campaignMedium<\/strong>
    Variable name:<\/em> campaignMedium<\/p>\n
    DLV – campaignName<\/strong>
    Variable name:<\/em> campaignName<\/p>\n
    Next, edit your Screen View Tag (or whichever Tag fires first on your app). Go to More Settings<\/strong> -> Fields to Set<\/strong>, and add the following three fields:<\/p>\n
    Field Name<\/strong>: &cs
    Value<\/strong>: {{DLV – campaignSource}}<\/p>\n
    Field Name<\/strong>: &cm
    Value<\/strong>: {{DLV – campaignMedium}}<\/p>\n
    Field Name<\/strong>: &cn
    Value<\/strong>: {{DLV – campaignName}}<\/p>\n
    Finally, publish the container, download the binary, update your app, and go crazy with launch campaign tracking.<\/p>\n
    Summary<\/h2>\n
    There\u2019s one thing you need to pay heed to. We\u2019re pushing the campaign parameters to dataLayer<\/code> but we\u2019re not sending an \u2018event\u2019 key. The reason for this is that we want the app to send its regular Screen View, using these values only if they\u2019re in the dataLayer<\/code> when the Screen View is dispatched.<\/p>\n
    You probably see how this can be a problem. If your app sends a Screen View as soon as the initial view appears, it\u2019s possible this dataLayer.push()<\/code> happens after<\/em> the Screen View hit is built, leading to a nasty race condition. The best way to ensure it works is to defer the initial hit to Google Analytics until the handleOpenURL<\/code> method has completed.<\/p>\n
    The whole thing is slightly more complex than when using just the GA SDK, as many things seem to be with the Google Tag Manager SDK, but it\u2019s still consistent with leveraging dataLayer<\/code> for message passing, rather than communicating directly with the endpoint.<\/p>\n<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"
    In Google Analytics for iOS, there are two types of campaign measurement. There\u2019s install campaign measurement, which lets you track the channels which brought your visitors to the App Store, where they proceeded to download your app. There\u2019s also launch campaign tracking, which lets you attribute app launches to specific campaigns. In this tip post, […]<\/p>\n","protected":false},"author":1,"featured_media":136008,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12033],"tags":[18719,32680,14492,3554,13053,1018],"dealstore":[],"offerexpiration":[],"class_list":["post-136007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytics","tag-campaigns","tag-gtm","tag-gtmtips","tag-ios","tag-launch","tag-track"],"yoast_head":"\n#GTMTips: Track Launch Campaigns In GTM For iOS - Som2ny Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fivemor.com\/?p=136007\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"#GTMTips: Track Launch Campaigns In GTM For iOS - Som2ny Network\" \/>\n<meta property=\"og:description\" content=\"In Google Analytics for iOS, there are two types of campaign measurement. 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    The setCampaignParametersFromUrl()<\/code> method takes a URL string, and parses it for the regular UTM campaign parameters<\/a>. It stores them in a bunch of constants the GA SDK leverages to pass information between the app and Google Analytics.<\/p>\n