Matomo UserId is not showing Everytime

Support & Bugs
1 
function matomo(userId) {
  let userId=localStorage.getItem('userEmail');
  console.log("matomo",userId);
  var _mtm = (window._mtm = window._mtm || []);
  // var _paq = window._paq = window._paq || [];
  _mtm.push(["trackPageView"]);
  _mtm.push(["enableLinkTracking"]);
  _mtm.push(["trackAllContentImpressions"]);
  _mtm.push({
    "mtm.startTime": new Date().getTime(),
    event: "mtm.Start",
    uid: userId,
  });
 
  (function () {
    var d = document,
      g = d.createElement("script"),
      s = d.getElementsByTagName("script")[0];
    g.async = true;
    g.src = "";
    s.parentNode.insertBefore(g, s);
  })();
}

We have used this code for tracking userId of logged in user in Angular Project.We are getting userId in console everytime.But in matomo all userId is not saved.What is the issue ?

2

Hi @trina
Did you create uid variable in the container, use this uid variable in the Matomo configuration variable, and use the last version of your container?

3

Yes we have used uid variable in the Matomo configuration variable.But still not getting userId.

EDIT by heurteph-ei:

image.png
image.png1283×650 54.9 KB

4

Hi @trina
Looking at your code, I am not sure the uid is taken into account.
What if you put: _mtm.push({'uid': userId}); before the _mtm.push(["trackPageView"]);?
Can you also confirm the uid variable has been defined in MTM container variables?

Can you also check the value of the uid variable with the container preview?

5

NO we have commented // _mtm.push([“trackPageView”]); as it’s creating error.
Yes,it’s used in MTM container variables.
image

6

Hi @trina

Which error is thrown?