title: Firebase conversion for dynamic link event misses campaign attribution
body: <p><strong>I use the firebase services</strong> in my application and firebase google analytics. <strong>I have several dynamic deep links</strong>, which are build programmatically inside my application. <em>(The links are also used for
  notifications or newsletters, as they work all the way)</em></p>
  
  <p>When a user opens a dynamic link that he/she received by another user,
  one of the <code>dynamic_link_*</code> events is triggered and send to analytics. </p>
  
  <p><strong>I added utm parameters to the links</strong>, using the <code>DynamicLink.GoogleAnalyticsParameters.Builder</code> and marked the <code>dynamic_link_*</code> events as conversion. My utm parameters are custom ones, I do not have a network for them. </p>
  
  <p><strong>i.e.:</strong> Source: <em>my_application</em>, medium: <em>share</em>, campaign: <em>xyActivity</em></p>
  
  <p><strong>Unfortunately, neither the campaign, nor the source or medium is set in the conversion event details.</strong></p>
  
  <p>Although, I see that the utm parameters are(!) attached to the event, in the <strong>StreamView.</strong></p>
  
  <p>The documentation says, this will autmatically be collected. But it won't <em>or</em> I am doing something very wrong.</p>
  
  <p>I thought that it is maybe related to the fact, that my utm parameters are not related to any network. But I can't find any option to add a custom one in the Network Settings tab of the conversion details.</p>
  
  <p>Thank you in advance!</p>
  
  <hr>
  
  <p><strong>Please see comments below! It took almost 1 1/2 Month
  to have results in the conversion overview!</strong></p>
  
  <p><a href="https://i.stack.imgur.com/YNMRm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YNMRm.png" alt="enter image description here"></a></p>